抄録
A 77-year-old man underwent endoscopic submucosal dissection (ESD) for early gastric cancer. One week after ESD, he was admitted to our hospital for tarry stool. Laboratory data on admission showed marked anemia. Urgent upper gastrointestinal endoscopy showed no bleeding, but anisakis tapeworm attached to the ESD-gastric ulcers. The nematode was immediately removed using the biopsy forceps of the endoscope. The patient recovered well and consumption of a bowl of rice topped with sashimi two days after endoscopy did not trigger abdominal pain. While gastric anisakiasis is relatively common in Japanese who eat raw seafood, anisakis infestation of gastric ulcer lesions, especially ESD-related ulcers, is rare.