Metachronous Thin-Walled Cavity Lung Cancers Exhibiting Variable Histopathology.

We report a case of metachronous thin-walled cavity lung cancers exhibiting variable histopathology. A 70-year-old man visited our hospital because of a thin-walled cavity located in the right upper lobe, detected by chest computed tomography. Right upper lobectomy was performed and a histological diagnosis of squamous cell carcinoma was made. Computed tomography at 7 years posttreatment detected a new thin-walled cavity in the left lower lobe. Histopathology after video-assisted thoracic surgery left S6 segmentectomy revealed adenocarcinoma. Patients with primary lung carcinoma may present with thin-walled cavities; postoperative screening can aid early the detection of metachronous primary lung cancers of variable origin. (C) 2019 by The Society of Thoracic Surgeons.