title: Carcinoma arising in a calcified bronchogenic cyst.
abstract: A round calcified mass located in the anterior mediastinal compartment was removed in a 42-year-old man. The histopathological diagnosis was bronchogenic cyst with foci of anaplastic carcinoma and areas of osseous metaplasia. The rarity of these findings and the possibility of malignancy in bronchogenic cysts is discussed.
mesh_terms: D000328:Adult; D001982:Bronchial Diseases / Q000150:complications*; D002277:Carcinoma / Q000150:complications* / Q000473:pathology; D003560:Cysts / Q000150:complications* / Q000473:pathology; D006801:Humans; D008175:Lung Neoplasms / Q000150:complications* / Q000473:pathology; D008297:Male; D008476:Mediastinal Cyst / Q000150:complications / Q000473:pathology