Intrapulmonary teratoma (IPT) is a rare mediastinal teratoma. IPT arise because of abnormal migration of pluripotent stem cells along the developing lung bud. Patients present with chest pain, hemoptysis, and trichoptysis. These tumors have the potential to rupture into adjacent pleura, pericardium, or tracheobronchial tree. The differential diagnosis includes hydatid cyst, fungal ball, lung abscess, and lung parenchymal tumor. We report a case of IPT, which was initially diagnosed as hydatid cyst of the lung due to positive hydatid serology and correlating radiological features. The role of cross-reaction of hydatid antigens with sera of cancer patients needs to be evaluated. Surgical resection of the tumor is advised to avoid complications.
Intrapulmonary teratoma Hydatid cyst of the lung Surgical resection
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Conflict of interest
The authors declare that they have no conflict of interest.
Video 1Video of the CT Chest (mediastinal window) which shows a multilobulated cystic lesion in the right lower lobe, causing a mediastinal shift towards the left side with part of the cyst herniating posterior to the heart. (MP4 10929 kb)
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