Abstract
Although pulmonary hamartoma is relatively common, cases of cystic degeneration are very rare. The patient was a 59-year-old man admitted to our hospital because of pulmonary cystic lesion, detected by chest computed tomography. (CT) during a health check up.rCT showed a cystic lesion with small nodules and slightly thickened walls in the left lower lung. Based on these findings we suspected malignancy or aspergiloma, and video assisted thoracoscopic surgery was used to resect the cystic tumor. Pathologically the tumor was composed of cartilage tissue, fat tissue, and bronchial epithelium. From the pathological findings, the tumor was diagnosed as chondromatous hamartoma with cystic degeneration.
