“…[2,3] Extrapulmonary but intrathoracic hydatid cysts are very rare. [3] Cysts of bronchogenic, pleuropericardial, thymic, intramural, oesophageal, lymphangioma, anterior meningocele and enteric origin, as well as other rare types, may be found in the mediastinum of adults and children. [5] In one study, out of 1,619 intrathoracic hydatid cysts, only eight (0.5%) were situated in the mediastinum.…”