Abstract
A 46-year-old male had bloody sputum and hemoptysis, cough, and an oppressive feeling in the anterior thoracic region. The chest X-ray film showed a faint, homogenous shadow in the center of the left lung field. Cytologic examination of the bloody sputum indicated stage IV or V and on the suspicion of adenocarcinoma, the entire left lung was excised. In a part of the excised lung, a tumor node was discovered which was histologically diagnosed as malignant pulmonary hemangioendothelioma. Following surgery, the patient received antitumor therapy but metastasis to the right lung occurred and the patient died about 2 months later.
