Abstract
A 56-year-old female and a 62-year-old male were referred to our hospital with gastric elevated lesions. White light imaging revealed a submucosal tumor-like lesion located at the upper gastric body, and endoscopic ultrasound sonography revealed multiple anechoic areas in the second and third layers in both patients. The masses in the female and male patients were resected by ESD and LECS, respectively. Microscopic findings of resected specimens showed cystic proliferation of glands and formation of ectopic duct-like structures, which was diagnosed as a gastric hamartomatous inverted polyp (GHIP) . GHIPs are rare and difficult to diagnose based on forceps biopsy. We describe GHIPs with characteristic endoscopic findings in two patients.
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