Original Article-I Sentinel Node Biopsy in Cervical Cancer - A Pilot

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							INDIAN JOURNAL OF MEDICAL & PAEDIATRIC ONCOLOGY                     Vol. 28 No 4, 2007                   8

Original Article-I

Sentinel Node Biopsy in Cervical Cancer - A Pilot Study

MANOJ BABU R, ALTAF GAUHAR HAJI, D.K VIJAY KUMAR,
K. CHITRATHARA, PADMA SUNDARAM, SHANMUGHA SUNDHARAM



ABSTRACT:                                                    detected by ninety minutes. Two out of the
                                                             thirteen patients had sentinel node positive
BACKGROUND: We conducted a pilot study                       for metastasis. These patients also had
to assess the feasibility of doing sentinel                  additional positive nodes. There were no
node biopsy in patients with early stage                     false negatives. Bilateral nodes were seen
cervical cancer.                                             in three patients. More than one node was
METHODS: Thirteen patients with early                        identified in four patients. The sentinel node
stage carcinoma cervix (Stage I A-2 and                      was found to be the “internal iliac node /
eleven cases of stage I B1) were planned for                 nodes” in eight patients and the “obturator
radical hysterectomy (PLND). Early on the                    node / nodes” in seven patients.
day of surgery, patients had initial injection
of 0.4 to 0.6 ml radio-isotope, 37 MBq of                    Conclusion: Sentinel node biopsy is feasible
filtered 99m Technetium sulphur colloid,                     in patents of stage I A2 to stage I B2
either peritumourally or into the four                       carcinoma cervix, using radiocolloid
quadrants of the cervix when the lesion was                  injection    and    l ymphoscintig r aphy
not visible. The injections were given using                 techniques.
an insulin syringe taking precautions to
avoid intra-tumoural injection and back-                     INTRODUCTION
flow out of the injection tract. The patients
were then screened under the gamma                           Cervical cancer is a leading cause of cancer
camera at regular intervals in the nuclear                   deaths worldwide and is common cancer among
medicine department to determine the
                                                             women in India. The current management for
location of the sentinel node/nodes. Once
                                                             patients with cervical cancer stage I A2, stage I
the sentinel node was identified and
marked, patients were taken to the                           B1 and selected II A is a radical hysterectomy
operating room. During surgery the sentinel                  with a full pelvic node dissection.This may be
node was detected by means of a hand held                    associated with morbidities eg. bleeding, pelvic
gamma probe and sent separately for histo-                   lymphocoele formation, neurogenic bladder, leg
pathological examination. This was                           edema, nerve damage, etc.1
followed by a radical hysterectomy with
bilateral PLND in all cases.                                       The sentinel node is defined as the very
                                                             first node or group of nodes that drain the
Results: The sentinel lymph node was
                                                             anatomical re gion or primary tumour. 2,3
detected in all cases except one patient
                                                             Therefore, the absence of metastatic disease
within thirty minutes after injection of the
                                                             within the sentinel node should enable a
radioisotope. In this patient the node was
                                                             reduction in extent of the lymphadenectomy
                                                             and a possible morbidity sparing effect. The
                                                             technique of sentinel node biopsy is now part
 De par tment of Surgical Oncolo g y, and Nuclear Medicine
(Padma Sundaram, Shanmugha Sundaram) Amrita Institute of     of the standard surgical management for breast
Medical Sciences and Research Centre, Kochi, Kerala.         cancer and cutaneous malignant melanoma.
Correspondence to: MANOJ BABU R,
Email: manojbabu4@rediffmail.com
INDIAN JOURNAL OF MEDICAL & PAEDIATRIC ONCOLOGY              Vol. 28 No 4, 2007                   9




Currently its application in various                  99m Technetium filtered sulpher colloid using
gynecological malignancies eg. vulval cancer,         a 0.22-micron Millipore filter, (Dose less than 37
cervical cancer and endometrial cancer is being       MBq in a volume of 0.4 ml – 0.6 ml) in the
evaluated. Earlier studies in cervical cancer         nuclear medicine department. The total dose
have suggested that the procedure is less             was divided into four injections and given into
reliable in advanced stages of disease, as the        four quadrants of the cervix, at 12, 3, 6 and 9’O
afferent lymphatics tend to get blocked by the        clock positions in cases where the lesion was not
tumour cells, leading to false negative study 4
                                             .        grossly visible (micro-invasive carcinoma). In
                                                      patients with grossly visible tumour, the
      The concept of sentinel node biopsy             injections were given peritumourally. The
appears attractive for cervical cancer as the         injections were given by insulin syringe, taking
incidence of lymph node metastasis in stage I         precautions to avoid intra-tumoural injection
A2 cervical cancer is only 7 % and in stage I BI      and back flow out of the injection track.
it does not exceed 20 %, i.e. a significant
percentage of patients are not benefited from               Immediately after the injection the patient
lymphadenectomy. 5 Cervix has a complex               were shifted on to the gamma camera table and
lymphatic drainage due to its midline position.       a high-resolution static image of the anterior
Complications associated with lymph node              abdomen and pelvis was acquired for five
dissection develop more frequently if                 minutes. Subsequent static images of the
postoperative radiotherapy is administered.6, 7       abdomen and pelvis were acquired every 15
Cervical cancer patients with negative pelvic         minutes to detect sentinel node / nodes. When
nodes benefit from radical hysterectomy, while        the sentinel node was visualized as a hot spot, it
those with histologically proven lymph node           was marked with a radioactive marker for
metastasis may benefit more from primary              confirmation and then the corresponding site
chemo-radiation. Traditional imaging                  was marked on the patient’s skin with a marker
                                           ,
techniques including lymphangiography CT and          pen.
MRI may fail to identify lymph node metastasis
with accuracy 8, 9 Present study is to find out the
               .                                      Intra-operative localization
feasibility of sentinel node biopsy in patients
with early stages of cervical cancer.                 During laparotomy, before proceeding with
                                                                         ,
                                                      lymphadenectomy a hand held battery operated
METHODS
                                                      gamma detector probe [Energy range-140 keV to
Patients:                                             360 keV, absolute sensitivity for 99mTc (140keV)
Thirteen patients with histologically proven          -7500 cps/MBq and resolution (FWHM) of <
early cervical cancer with tumour size less than      12mm] was moved along the lymph node regions
4 cm were included in the study. The mean age         to detect preoperatively marked sentinel lymph
of patients was 51.7 years (range= 37 to 71           nodes. The nodes containing radioactivity
years). Among the 13 cases, 11 had Stage IB 1         counts more than ten times the background
and the remaining two had stage I A2. 10 of 13        activity were removed and count checked ex-
cases were squamous cell cancers on histology         vivo using the same probe. The gamma probe
and cytology All these cases were scheduled for
             .                                        needs to be angled laterally to avoid residual
radical     hysterectomy       with      pelvic       radioactivity emitted from the primary injection
lymphadenectomy.                                      site (Figure I). Once the nodes were identified
                                                      the position of each node in relation to the major
Pre-operative lymphoscintigraphy:                     pelvic vessels were noted and the count
Preoperative lymphoscintigraphy was                   recorded. This was followed by a conventional
performed early during the day of surgery using       lymphadenectomy in all cases.
INDIAN JOURNAL OF MEDICAL & PAEDIATRIC ONCOLOGY                     Vol. 28 No 4, 2007                    10




                                                                      .
                                                             morbidity The two common methods for sentinel
                                                             node detection are using vital dyes and
                                                             radioactive tracers. The vital dyes commonly
                                                             used are isosulfan blue, patent blue violet, and
                                                             methylene blue. Any blue-dyed node is
                                                             considered to be a sentinel node. Radioactive
                                                             tracers contain the 99m technetium
                                                             radioisotope. Three nanoparticles are used: 15-
                                                             50 nm colloidal sulphur, 5-80 nm human
                                                             albumin, and 2-3 nm human serum albumin.
                                                             Several images are obtained from different
                                                             projections, and the anatomical references are
Figure 1- Intra-operative lymphatic mapping- the gamma
                                                             marked in order to facilitate location. An
probe being angled laterally to avoid residual radioactiv-   intraoperative gamma probe is used to trace the
ity of primary site.                                         node chains under study systematically,
                                                             considering the sentinel node as the one that
                                                             shows, ex vivo, a 10-fold increase in the
Histopathological Examination                                radiation count relative to the basal count.
The sentinel nodes as well as the                                    Since Echt et al reported the initial case
lymphadenectomy specimen were then sent                      series in 1999 using blue dye alone; several
separately for histopathological examination.                authors have published their experience with
Histopathological examination was done using                 sentinel node detection in cervical cancer 10.
the standard technique with haematoxylin and                 More than for ty three studies involving
eosin stain.                                                 approximately 1600 patients have been reported
                                                             so far using either blue dye alone, radio-colloid
RESULTS                                                      alone or with the combined method using blue
Patients characteristics are shown in table I. The           dye along with radio-colloid for detecting
sentinel nodes were detected in all the thirteen             sentinel nodes in patients with cervical cancer.
cases, i.e. detection rate was 100%. Only 3 cases            The largest series, reported by Rob et al
had bilateral sentinel nodes. The average time               comprised of 183 cases, 100 cases using blue dye
taken for detection of sentinel nodes was 37 min             alone and 83 cases using the combined method.
(SD= 17.8) with a range of 20 to 90 minutes. The             The detection rate was 80% with blue dye and
commonest site was the internal iliac node/                  96.4% with the combined method. The negative
nodes (61.53%) followed by obturator nodes                   predictive value (NPV) was 99% and 100 % with
(53.8%).                                                     blue dye and the combined method
                                                             respectively. 11 Lin et al reported the largest
A total of 22 sentinel nodes were detected in                series of 100 patients using lymphoscintigraphy
thirteen cases. The lymph nodes were positive                followed by intraoperative lymphatic
for metastasis in two cases (both stage IB 1). Both          mapping. 12 There is a paucity of studies
cases were squamous cell carcinomas. Among                   conducted and reported from India, even though
the node positive cases one was grade II and the             it is the commonest malignancy in women.
other was grade III. In both these cases, other                    In nine cases of Stage IB1 lesions peri-
nodes were also positive. There were false                   tumoural injection technique was practiced. In
negatives so far in our series, i.e., whenever               one case the lesion was mainly in the cervical
sentinel nodes were negative other nodes were                canal and due to technical difficulties, four-
also negative.                                               quadrant injection technique was used. Similar
DISCUSSION:                                                  procedure was adopted for the stage IA 2 cases.
                                                             Most of the patients reported mild pain after
Sentinel node biopsy is a relatively new                     injection, which did not persist. We felt that it
addition to the field of surgical oncology, which            was helpful to use a thin 25 G needle with
has got great potential to reduce surgical                   constant gentle pressure to prevent spillage into
INDIAN JOURNAL OF MEDICAL & PAEDIATRIC ONCOLOGY                   Vol. 28 No 4, 2007                    11




                             Table I - Patient and Tumour Characteristics.

    Age (Mean)                     51.7 years                               Range: 37-71 years
                                                                            No of Patients
    Stage                          IA2                                      02

                                   IB1                                      11

    Histology                      Squamous cell carcinoma                  10

                                   Adenocarcinoma                           03

    Grade                          Grade I                                  03

                                   Grade II                                 07

                                   Grade III                                03

    Internal iliac nodes           8                                        61.5%

    External iliac nodes           2                                        15.48%

    Obturator nodes                7                                        53.8%


     *Standard deviation = 11.27

                           Table II -Characteristics of Sentinel Lymph Nodes

    Characteristics                             No. Of patients                     Percentage
                                                    (N=13)

    Detection rate                                    13                               100%

    Bilateral nodes                                   3                                 23%

    Lymph node metastases                             2                                15.38%

    Sentinel node metastases                          2                                15.38%



the vagina. For the first 2 cases,we injected 0.6          not obtained because we felt that marking in a
ml of radio colloid. But in the subsequent cases           second plane did not add much to the easiness
we injected only 0.4 ml radio colloid with 0.1 ml          of detection of the node using the sensitive
                                                           gamma probe. The only major use of
for each site for convenience, even though the
                                                           lymphoscintigraphy as per our experience was
dose remained the same (25 MBq tp 37 MBq). In
                                                           to detect the side of sentinel node so that one can
9 out of 13 cases the lymphoscintigraphic images           be more focussed while doing intra-operative
were obtained within 30 minutes. In one case it            gamma probe guided dissection. Other authors
took 90 minutes for localization of radioactivity.         have re por ted similar experiences. 11 T he
The markings were made on the anterior                     minimum time taken was 20 min and the
abdominal wall corresponding to the                        maximum time taken for sentinel node detection
approximate site of the node. A lateral view was           was 90 minutes.
INDIAN JOURNAL OF MEDICAL & PAEDIATRIC ONCOLOGY             Vol. 28 No 4, 2007                   12




      The detection rate in our series was 100       serial sectioning.20 Molecular techniques such as
%. The detection-rate reported by Echt et al in      real-time polymerase chain reaction (RT- PCR)
1999 was only 23%10 but the recent studies using     are being evaluated for detecting micro
intra-operative lymphatic mapping as well as         metastasis. However, the clinical significance of
the combined method using intraoperatve              PCR-detected micro metastasis remains
lymphoscintigraphy (ILS) and blue dye together       controversial.
have reported detection rates around 100%. 13, 14
                                                           The major drawbacks of the present study
        In the two patients who had sentinel
                                                     include-the limited number of patients and the
nodes positive for metastasis, other nodes were
                                                     failure to use the combined method using blue
also positive. This emphasizes the need for
                                                     dye and radioactive tracers rather than using
perfor ming a complete lymphadenectomy,
                                                     radioactive tracers alone. The high cost of the
whenever sentinel nodes are positive for
                                                     equipments required and the lack of availability
metastasis. The negative predictive value (NPV)
                                                     of qualified and experienced personnel are the
was 100% i.e., whenever sentinel nodes were
                                                     major limiting factors for wider application of
negative, other nodes were also negative.
                                                     lymphoscintigraphy especially in countries like
Others have also reported similar results. 12, 15
                                                     India.
The present study included only early cases up
to stage I B1. This might have contributed to the          In our view the major cause of morbidity
high NPV. Bar ranger et al re por ted false          after surgery for cervical cancer is due to the
negative rate of 20% in locally advanced             parametrial resection rather than the
cervical cancer and 0% in early stage disease.4      lymphadenectomy. An early cervical cancer i.e.,
       The commonest anatomical location of          ones which can be treated by surgery alone are
sentinel nodes was the internal iliac group          those which are unlikely to have nodal
(61.5%), followed by obturator group (53.8%).        metastasis. The morbidity of surgery is
This was in contrast to many case series where       considerably increased when it is combined
the commonest site of sentinel nodes was the         with radiotherapy. Hence sentinel node biopsy
external iliac group.16, 17 This can be attributed   can be employed as a technique to detect nodal
to the limited number of cases in our series.        metastasis with minimum morbidity. Role of
Lymphatic anatomy of the cervix is complex.          laproscopic surgery for cervical cancer is likely
Cervix being a midline structure is likely to        to increase in future. Once validated
have bilateral lymphatic drainage, as noted by       laparoscopic sentinel node biopsy would have
Leveuf and Godard 18. But in our series only 3 out   potential to reduce surgical intervention time,
of 13 (23%) patients had bilateral sentinel nodes.   avoid removal of normal nodes and helps the
Indeed the bilateral detection rate in literature    pathologist to concentrate on the limited
varies from 24% and 83%.                             number of nodes harvested by sentinel lymph
                                                                 .
                                                     node biopsy Similarly detection of sentinel node
      One of the key issues of the SN concept is
                                                     status can help in planning treatment. For
the histological assessment of the lymph node
                                                     example in patients found to have SNB positive
specimen(s). We have adopted standard
                                                     for nodal disease can be treated by primary
sectioning with haematoxylin and eosin for
                                                     chemo-radiation, thus avoiding additional
evaluation of sentinel lymph nodes. We have not
                                                     morbidity of surgery .
used intra-operative frozen section analysis,
because it has low sensitivity for detecting         CONCLUSION
metastases; and the false negative rate of
identifying micrometastases can be as high as        Sentinel node biopsy is a feasible technique in
70%19. Standard sectioning with haematoxylin         early stage carcinoma cervix (I A2 to I B2) using
and eosin staining is not as sensitive as serial     radiocolloid injection and lymphoscintigraphy
sectioning (variable intervals between 50 and        techniques. The results of this study are
400 ìm) combined with immunohistochemistry           encouraging; however studies with larger
(IHC) to detect micro metastases. In contrast,       number of patients are needed to confirm these
Hakam et al. found no additional benefit of          observations.
INDIAN JOURNAL OF MEDICAL & PAEDIATRIC ONCOLOGY                      Vol. 28 No 4, 2007                              13




ACKNOWLEDGEMENT                                               10.   Echt ML, Finan MA, Hoffman MS, Kline RC, Roberts
                                                                    WS, Fiorica JV. Detection of sentinel lymph nodes
We would like to thank our colleagues in the                        with lymphazurin in cervical, uterine, and vulvar
department of pathology, Amrita Institute of                        malignancies. South Med J. 1999;92:204–8.

Medical Sciences and Research Centre, Kochi,                  11.   Rob L, Strnad P, Robova H, et al. Study of lymphatic
                                                                    mapping and sentinel node identification in early
for their cooperation.                                              stage cervical cancer. Gynecol Oncol. 2005;98(2):281-8.
                                                              12.   Lin YS, Tzeng CC, Huang KF, Kang CY, Chia CC,
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                                                                    Hsieh JF. Sentinel node detection with radiocolloid
                                                                    lymphatic mapping in early invasive cervical cancer.
1.   Soisson AP, Soper JT, Clarke-Pearson DL, et al.
                                                                    Int J Gynecol Cancer. 2005;15:273–7.
     Adjuvant     radiotherapy      following      radical
     hysterectomy for patients with stage IB and IIA          13.   Chung YA, Kim SH, Sohn HS, et al. Usefulness of
     cervical cancer. Gynecol Oncol. 1990;37(3):390-5.              lymphoscintigraphy and intraoperative gamma probe
                                                                    detection in the identification of sentinel nodes in
2.   Gould EA, Winship T, Philbin PH, et al. Observations
                                                                    cervical cancer. Eur J Nucl Med Mol Imaging.
     on a “sentinel node” in cancer of the parotid Cancer.
                                                                    2003;30:1014–7.
     1960;13:77-8.
                                                              14.   Merisio C, Berretta R, Gualdi M, et al. Radioguided
3.   Cabanas RM, An approach for the treatment of penile
                                                                    sentinel lymph node detection in vulvar cancer. Int J
     carcinoma.Cancer.1977;39:456-66.
                                                                    Gynecol Cancer. 2005; 15:493–7.
4.   Barranger E, Coutant C, Cortez A, et al. Sentinel node   15.   Angioli R, Palaia I, Cipriani C, et al. Role of sentinel
     biopsy is reliable in early stage cervical cancer but          lymph node biopsy procedure in cervical cancer: a
     not in locally advanced disease. Ann Oncol.                    critical point of view. Gynecol Oncol. 2005;96:504–9.
     16(8):1237-42
                                                              16.   Malur S, Krause N, Kohler C, et al. Sentinel lymph
5.   DiSaia PJ, Craesman TC. Invasive cervcal cancer, In            node detection in patients with cervical cancer.
     DiSaia PJ, Craesman TC (editors):         Clinical             Gynecol Oncol. 2001;80(2): 254-7.
     Gynecolo gic Oncolog y. Pub Mosby, Philadelphia.
                                                              17.   O’Boyle JD, Coleman RL, Ber nstein SG, et al.
     2001,6 th edition p 61-71.
                                                                    Intraoperative lymphatic mapping in cervix cancer
6.   Corn BW, Lanciano RM, Greven KM, et al. Impact of              patients undergoing radical hysterectomy: A pilot
     improved irradiation technique, age, and lymph node            study.Gynecol Oncol. 2000 Nov; 79(2): 238-43. 24.Grabau
     sampling on the severe complication rate of                    DA, Rank F, Friis E. Intraoperative frozen section
     surgically staged endometrial cancer patients: a               examination of axillary sentinel lymph nodes in
     multivariate analysis. Clin Oncol. 1994 ;12(3): 510-5.         breast cancer. APMIS. 2005;113:7–12.21.
7.   Magrina JF. Complications of irradiation and radical     18.   Leveuf J, Godard H. Les lymphatiques de l’uterus.
     surgery for gynecologic malignancies. Obstet Gynecol           Rev Chir 1923;3:219-4833.
     Surv. 1993;48(8): 571-5.                                 19.   Scholz HS, Lax SF, Benedicic C, et al. Accuracy of
8.   Scheidler J, Hricak H, Yu KK, et al. Radiological              frozen section examination of pelvic lymph nodes in
     evaluation of lymph node metastases in patients with           patients with FIGO stage IB1 to IIB cervical cancer.
     cervical    cancer.     A meta-analysis.     JAMA.             Gynecol Oncol. 2003;90:605–9.
     19971;278(13):1096-101.                                  20.   Hakam A, Nasir A, Raghuwanshi R, et al. Value of
9.   Kokka F, Vorgias G, Tserke zo glou A, et                       multilevel sectioning for improved detection of
     al.Preoperative work-up of early cervical                      micrometastases in sentinel lymph nodes in invasive
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INDIAN JOURNAL OF MEDICAL & PAEDIATRIC ONCOLOGY                          Vol. 28 No 4, 2007                     14

Original Article-II

Clinical and Radiological Features of Paediatric
Burkitt’s Lymphoma - A Four Year Study.

BOSCO J I E, APPAJI L, ARUNA K, RAGHURAM P, RAMA RAO C, VIDHYA A




ABSTRACT                                                          INTRODUCTION
Backg round: Burkitt’s lymphoma is a                              Burkitt’s lymphoma (BL), a high grade B cell
curable childhood malignancy with                                 neoplasm showing monoclonal proliferation,
s i g n i f i c a n t g eo g r ap h i c a l va r i at i o n i n   was first described in 1957, by an Irish surgeon-
incidence, clinical presentation and                              Denis Parsons Burkitt who mapped its peculiar
response to treatment. There is sparse                            geographic distribution across equatorial
literature on Burkitt’s lymphoma from                             Africa. Its etiological factors include the Epstein
India.                                                            Barr virus – the first reported oncogenic virus
                                                                  in humans1. Prospective studies in Uganda2 have
Methods: Between 2003 and 2007, 19 cases
                                                                  confirmed its role. In 1982 the C-myc gene3 was
of Burkitt’s lymphoma were diagnosed at
                                                                  re ported and abnor mal production of B
our centre. Their clinical presentation and
                                                                  lymphocytes was noted in translocation between
radiological features were studied.
                                                                  long arms of chromosome 8 with 14 and, to a
Results: The mean age was 7.2 years (range-                       lesser extent between chromosomes 8, 22 and 2,
1 to 5 years). There was a slight male                            8. Other complicating factors include falciparum
preponderance (M: F = 1.7:1). Almost all the                      malarial infection which acts by an EBV specific
cases were seen over a 2 to 3 month period.                       T cell immune deficiency. Radiology plays a
The most common presentation was an                               vital role in staging the disease 4 and further
abdominal mass followed by a maxillary-                           management as clinical and pathological
mandibular swelling. The most common                              examination alone cannot decide the extent of
imaging finding was a lobulated, hyper-                           disease – patients with a primary in head and
mixed echogenic abdominal mass on                                 neck region may have clinically non-detectable
ultr asono g r aphy and a hypodense,                              disease in abdomen5 – necessitating abdominal
heterogeneously enhancing intra-abdominal                         imaging in all cases of BL. As BL is a fast
mass with necrotic foci on CAT scan. Most                         growing tumour, its earlier detection and
of the cases (84.2%), were stage III (St.                         treatment decides the outcome. Also response to
Judes staging) at the time of presentation.                       treatment can be correlated to decrease in size
Fourteen of 19 cases received treatment of                        of mass, and best evaluated by imaging studies.
which 10 (71.4 %) achieved remission.
                                                                        Two distinct types of BL are known (i) the
Conclusion: Our cases show an intermediate                        African or endemic form seen in equatorial
pattern – having clinical characteristic of                       Africa and Papua New Guinea – here this is the
both the African and the American forms of                        commonest childhood malignancy (100 per
Burkitt’s lymphoma.                                               million), classically associated with EBV
                                                                  infection (upto 100 %), seen in malarial
Department of Pediatric Oncology Kidwai Memorial Institute of
                                ,                                 endemic areas, commonly involves the jaw,
Oncology, Bangalore
Corresponding author: JEROME I E BOSCO                            affects younger individuals with mean age of 7
Email : dr_vidhyajerome@rediffmail.com                            years, and shows good response to
INDIAN JOURNAL OF MEDICAL & PAEDIATRIC ONCOLOGY              Vol. 28 No 4, 2007                        15




chemotherapy (ii) American or sporadic form is       lymphomas and 23.7% of the Non Hodgkin’s
uncommon (1 per million ), evidence of EBV           lymphomas in a year. Of the 19 patients-12 were
infection is seen in 20 % of cases, median age       diagnosed with cytology and karyotyping and 7
is relatively higher and there is male               by biopsy and immunohistochemistry   .
preponderance and poor response to
                                                           A total of 19 children were studied with
chemotherapy  .
                                                     ages from 1 to 15 years – mean age of 7.2 (+- 3.9)
      There have been reports of BL occurring        years, shown in table 1. There was a slight male
                                    7,8
in case clusters for place and time, the exact       predominance – 12 boys to 7 girls (M: F = 1.7:1),
cause of which is only speculative. It has been      (table 2).
attributed to endemic malaria in regions which
                                                           The most common clinical finding was an
in turn varies with climate, especially rainy
                                                     abdominal mass – seen in 14 individuals
season.
                                                     (73.7 %), cervical, inguinal lymphadenopathy
      Even though disease has been                   in 9 children (47.4%), maxillary-mandibular
characterized in endemic and nonendemic              swelling - in 6 cases (31.6 %). Others included
areas, little information is available from India.                        ,
                                                     hepatosplenomegaly ascites, proptosis, swelling
The present study tries to look for the type of      in frontal region, and pallor.
presentation, radiological features, and
                                                     Imaging: The most common findings were
clustering of BL in a oncology referral centre
                                                     lobulated hyper – mixed echogenic mass in the
from South India.
                                                     abdomen       on     USG,      or     hypodense,
PATIENTS AND METHODS                                 heterogeneously enhancing intraperitoneal mass
                                                     with areas of necrosis on CT scan (fig1)– often
This cross sectional study was conducted in the
                                                     encasing mesenteric vessels and bowel - seen in
department of Pediatric Oncology and
                                                     14 (73.7 %) patients. Of the abdominal masses –
Department of Radiodiagnosis, Kidwai
                                                     9 showed more than one site of involvement – 13
Memorial Institute of Oncology, Bangalore.
                                                     involved small/large bowel and adjacent
       All patients of BL underwent complete         mesentery, 9 occurred in the retroperitoneum –
evaluation and diagnosis was confirmed by            paraaortic regions, 2 presented in the ileo-caecal
histomorpholog y, immunohistochemistry,              region, and 2 in the uterus / adnexal region.
cytology and karyotyping, from 2003 onwards.         Other intra-abdominal findings included renal
Bone marrow aspiration and CSF cytology was          mass in 2, hepatomegaly-4, splenomegaly
done to stage the disease. The time of               3, adrenal mass in 1 and ascites in 2 patients. The
presentation was an interesting finding, with        extra-abdominal findings included maxillary
cases presenting in clusters – in the year 2003,
all the 5 cases of BL presented between July and
September, and in the year 2006-07 - 7 out of the
8 cases, presented between October and
          .
January St. Jude’s Children Research Hospital
Staging system was used for staging. 9
Radiological findings– including chest
radiograph, OPG, ultrasonography, CT and MRI
were tabulated. The treatment course was
charted for all patients. Parental consent was
taken, if any patient was photographed.
Results (table1 & 2 )
A total of 1600 cases of childhood malignancies
were seen in the year 2003 to 2006 with an
average of 400 per year, 12.4% of these were
lymphomas (both Hodgkin’s and non                    FIGURE 1. CECT of a case of abdominal Burkitt’s
Hodgkin’s). BL comprised 9.1% of all                 lymphoma in a child.
INDIAN JOURNAL OF MEDICAL & PAEDIATRIC ONCOLOGY             Vol. 28 No 4, 2007                   16




                                Table 1: Patient’s Characteristics
  Total no of patients                           19
  Age                                            7.2years                        (range=1-15 )
  Sex= Male:female                               12:7
  Clinical findings                              Number of patients              PERCENTAGE
  1)Abdominal mass                               14                              73.7
  2)Cervical / inguinal lymphadenopathy          9                               47.4
  3)Maxillary-mandibular swelling                5                               26.3
  4)Hepatomegaly                                 4                               21
  5)Splenomegaly                                 3                               15.8
  6)Ascites                                      2                               10.5
  7)Proptosis                                    1                               5.3
  8)Frontal swelling                             1                               3.3
  9)Pallor                                       6                               31.6
  Diagnosis
  Biopsy+Immunohistochemistry                    7
  Cytology+karyotyping                           12
  Staging
  I                                              1
  IIE                                            1
  III                                            16
  IV                                             1


                   Table 2: Radiological Findings in Burkitt’s lymphoma (n=19)

 RADIOLOGICAL FINDING                                Number of patients          PERCENTAGE
 Mass involving / encasing - bowel / mesentery              14                   73.7
 Intra / retroperitoneal lymphadenopathy                    9                    47.4
 Maxillary swelling                                         4                    21
 Hepatomegaly                                               4                    21
 Splenomegaly                                               3                    15.8
 Renal mass                                                 2                    10.5
 Uterine / adnexal mass                                     2                    10.5
 Mediastinal / hilar mass                                   2                    10.5
 Bone lesion                                                2                    10.5
 Ascites                                                    2                    10.5
 Mandibular swelling                                        1                    5.3
 Testicular mass                                            1                    5.3
 Adrenal mass                                               1                    5.3

						
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