[Large cell carcinoma of the lung with metastasis of the gastric submucosa].

A 66-year-old man was admitted with dyspnea on exertion and an abnormal shadow on chest roentgenogram. Transbronchial biopsy yielded a diagnosis of large cell carcinoma of the lung. His dyspnea improved following irradiation and corticosteroid treatment and one month later, he was admitted again for chemotherapy. Because occult blood in stool was detected, upper gastrointestinal endoscopy was performed. Gastric submucosal large cell carcinoma was diagnosed, and this was considered to be metastatic from the lung. Such cases diagnosed prior to death are rare.