Bronchogenic cysts are congenital malformations thought to originate from the primitive ventral foregut, and they are the most common type of mediastinal cystic lesion. The clinical presentation of a bronchogenic cyst is variable, from respiratory distress at birth to late appearance of symptoms. Most bronchogenic cysts originate in the mediastinum, and 15% to 20% occur in the lung parenchyma. Various malignant transformations have been reported in the literature. In this report, we describe a case of schwannoma in an intrapulmonary bronchogenic cyst wall in a 38-year-old man, which was found incidentally during a routine examination.
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