HYDATID CYST - AN UNUSUAL ETIOLOGY FOR A CYSTIC LESION OF THE POSTERIOR MEDIASTINUM

The cystic lesions of the posterior mediastinum include bronchogenic, enteric and intramural esophageal cysts, lymphangioma, and anterior me ningocele. Hydatid cysts are usually located in the river, lung, and b rain. Although many uncommon locations have been reported, hydatid cys t has not previously been encountered as an isolated posterior mediast inal lesion. A 4-year-old boy with a posterior mediastinal cystic lesi on, which has been proven to be a hydatid cyst, is reported. Copyright (C) 1998 by W.B. Saunders Company.