Spontaneous pneumomediastinum must be considered as part of the differential diagnosis when evaluating a patient in the emergency department for acute chest pain. It is particularly relevant in cases of young patients with a history of asthma or inhalation of psychoactive substances or when the symptoms are related to Valsalva maneuvers. It has multiple radiographic signs on plain chest radiography, some of which are appreciated only on lateral views. CT plays an important role in the initial evaluation and is helpful in excluding other causes of pneumomediastinum or chest pain. Stable patients can be managed on a medical basis with analgesics and follow-up imaging.
R A D I O L O G I C A L C A S E Spontaneous pneumomediastinum Felipe Ma
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