Abstract
Case 1 : A 54-year-old man visited our hospital with the complaints of fever, nausea, and lumbago. Examinations revealed space-occupying lesions (SOLs) in the liver and a gastric submucosal tumor. Case 2 : A 73-year-old man presented to our hospital with the complaints of fever, dizziness, and loss of appetite. A SOL in the liver and a gastric submucosal tumor were detected. Both patients were treated with intravenous antibiotics because of suspected liver abscesses based on the clinical findings, and their symptoms and liver lesions improved. After treatment of the liver abscesses, both patients were successfully treated by laparoscopic wedge resection. Histopathology revealed a schwannoma in Case 1, and a GIST in Case 2. The liver abscesses were assumed to have been caused by the intra-gastric bacteria in the infected necrotic tissue of the submucosal tumor reaching the liver via the portal vein. As there are few reports of liver abscesses caused by gastric submucosal tumors, we report our cases with a review of the relevant literature.