A case of mediastinal enteric cyst mimicking lymphoma

Congenital foregut cysts of the mediastinum are extremely rare lesions. they are more frequent in males and in infants. they are commonly located posterior to the carina. in this report, we presented a mediastinal cyst mimicking lymphoma case in 12 years old boy with cough, anorexia, paleness, weakness and loss of weight. although majority of these cysts are seen in the right hemithorax, in our case it was mainly located in the left hemithorax and extended into the right hemithorax. gastroenteric cysts are often attached to the spine and a great proportion is associated with vertebral abnormalities. definitive diagnosis is obtained by histopathologic examination, and complete excision should always be considered when diagnosed, even in patients without symptoms.