A case of primary adenocarcinoma of the right lung with ossification

Abstract

Ossification within primary lung cancer is extremery rare. Only 8 cases including our case have been reported. In this report, we present a 76-year-old man who was refered to our institution due to an abnormal shadow on chest roentogenogram. Chest Computed Tomography (CT) demonstrated an irregular mass with central calcification in the right lung (S²). Using Video-assisted thoracic surgery (VATS) a right upper lobectomy was performed. And this lesion was diagnosed as papillary adenocarcinoma with central ossification by histopathological examination. We discussed the literature concerning the mechanism of ossification in the carcinomatous lesion.