Large Gastric Pyloric Gland Adenoma Mimicking Malignancy on FDG PET/CT
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Updated: Jul 6, 2026

Intraoperative Gastroscopy for Tumor Localization in Laparoscopic Surgery for Gastric Adenocarcinoma
Published on: August 9, 2016
Kun Zheng1,2, Yu Liu1,2, Hongli Jing1,2
1Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China.
Abstract:
A 51-year-old woman presented with intermittent upper abdominal pain for two years and unintentional weight loss recently. Gastroscopy revealed a large cardia mass protruding into the gastric lumen. CT examination suggested malignant gastric tumor. Subsequently, ¹⁸F-FDG PET/CT demonstrated heterogeneous intense uptake in the gastric mass. Pathologic examination identified a gastric pyloric gland adenoma by immunohistochemistry. The lesion was resected locally, and the patient recovered well.
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