A computed tomography scan showed a 4- to 5-cm left perirectal mass with enlarged perirectal lymph nodes with no sign of metastatic disease (Fig. 1A). Schwannomas of the colon and rectum have been described to closely resemble gastric schwannomas.1 Gastrointestinal schwannomas occur equally in men and women and the most common colonic site reported is the cecum.1 They can present as intramucosal polypoid lesions with ulcerations.2-4 In our case, the patient was asymptomatic and the finding was incidental.
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