A case report of undifferentiated lung cancer difficult in diagnosis by hemoptysis

Abstract

A 36-year-old male developed bloody sputum in August 1994. Three months later hemoptysis appeared. In January 1994, he presented to the outpatient clinic at our hospital with persistent hemoptysis. He had severe anemia. Chest X-ray film showed numerous bullae in the right upper lung field. A few bullae with clot were noted on chest CT. Bronchoscopic findings showed bleeding from B¹, but cytology (sputum, brushing), BAL and TBLB were all negative. Because of severe anemia and dyspnea and frequent hemoptysis, his condition deteriorated and he underwent emergency right upper lobectomy on February 4, 1995. Histopathological finding showed that the tumor was a sarcomatoid carcinoma. He made favorable progress after the operation.