Large Gastric Pyloric Gland Adenoma Mimicking Malignancy on FDG PET/CT.

Zheng, Kun; Liu, Yu; Jing, Hongli · Clin Nucl Med · 2026

case_report · Level V

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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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