A Case of Large Cell Carcinoma of the Lung with an Intrabronchial Polyp in 8cm length

Abstract

An abnormal shadow was pointed out on the chest X-ray film of a 75-year-old male with a complaint of hemosputum who was admitted to our hospital. Chest X-ray film revealed collapse in left S^3. Bronchoscopic findings showed a polypoid tumor extending from the periphery of left B^3a to the bifurcation of the left upper and lower lobes. As the histopathological findings of the transbronchial biopsy specimen showed necrosis, we strongly suspected a carcinoma of the lung and performed left upper lobectomy. The length of the polyp was about 8cm and the tumor grew from a 6th order bronchus of left B^3a. We diagnosed large cell carcinoma by the histopathological findings of the resected specimen. It was sometimes observed that a large cell carcinoma shows intrabronchial growth, but such extensive growth as this case is rare and it is only the second case in the domestic literature.