A Case of Laparoscopic and Endoscopic Cooperative Surgery for a Metastatic Tumor of the Stomach from Lung Cancer

Abstract

We describe a case of a 63-year-old man who consulted our hospital for paralysis of his left side. He was diagnosed with a metastatic brain tumor from lung cancer (Stage IV). Systemic chemotherapy was started after radiation therapy for the metastatic brain tumor. Tarry stool and progressive anemia were observed on the second day after beginning chemotherapy. An upper gastrointestinal endoscopy showed a 3-cm submucosal tumor at the greater curvature of the stomach fornix. Histopathological examination showed poorly differentiated adenocarcinoma and a metastatic tumor of the stomach suspected to originate from lung cancer based on immunohistochemical examination. We performed laparoscopic and endoscopic cooperative surgery (LECS) for the metastatic gastric tumor. This is, to our knowledge, the first case report of metastatic tumor of the stomach successfully treated with LECS under correct diagnosis in Japan.