CT Characteristics and Pathological Correlation of Gastric Hamartomatous Inverted Polyp: A Case Report

Authors

  • Xudong Chen Department of Radiology, Dongguan Tungwah Hospital, Dongguan /Dongguan Key Laboratory of Radiology and Molecular Imaging, Dongguan
  • Xinyu Wan Department of Radiology, Dongguan Tungwah Hospital, Dongguan /Dongguan Key Laboratory of Radiology and Molecular Imaging, Dongguan
  • Xiaomin Liu Clinical and Technical Support, Philips Healthcare, Guangzhou
  • Zhaoyong Li Department of Radiology, Dongguan Tungwah Hospital, Dongguan /Dongguan Key Laboratory of Radiology and Molecular Imaging, Dongguan

DOI:

https://doi.org/10.3941/jrcr.6099

Abstract

Gastric hamartomatous inverted polyp is a rare subtype of gastric polyp characterized pathologically by proliferation of submucosal gastric-type glands with cystic dilation and accompanying bundles of branching smooth muscle bundles, sometimes with  infiltration of inflammatory cells. This report aims to improve understanding of the imaging features of gastric hamartomatous inverted polyp by correlating CT characteristics with pathological results.We present a case of a 51-year-old female patient. The patient underwent thorough endoscopy, endoscopic ultrasound, and CT examinations, and the postoperative pathology confirmed an inverted polyp in the stomach.The CT findings of gastric hamartomatous inverted polyp show a localized depression on top of the nodule, enhanced mucosal line that connects with the gastric mucosa, and small low-density cystic shadows inside the nodule, which closely correspond to the pathological changes.This case the complementary value of multiple imaging modalities in evaluating gastric lesions and improving diagnostic accuracy.

The endoscope shows a pedunculated lesion on the greater curvature of the gastric fundus, measuring about 2.4 cm in length, and the surface mucosa appears smooth (a). Endoscopic ultrasound shows a moderately hyperechoic nodule with a peduncle in the gastric fundus that has a smooth, intact capsule

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Published

2026-06-30

Issue

Vol. 20 No. 6 (2026)

Section

Gastrointestinal Radiology

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