Endoscopic sonography in the diagnosis and treatment of a gastric wall abscess: a case report and review of the literature.

We report a case of a gastric wall abscess in a 50-year-old man who presented with epigastralgia and fever. Gastroscopy revealed a subepithelial lesion on the posterior wall of the gastric body into the antrum. A follow-up abdominal CT scan showed cystic lesions around the stomach. Endoscopic sonography helped to diagnose a gastric wall abscess. The gastric wall abscess was treated endoscopically with a needle knife incision for internal drainage. The patient was treated with antibiotics for 1 week and was discharged without complication. A follow-up endoscopy with endoscopic sonography 1 month later revealed complete resolution of the lesion.