Gastric polyps on routine double-contrast examination of the stomach.

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Abstract
Gastric polyps were found in 38 patients in 2420 consecutive double-contrast studies of the upper gastrointestinal tract. The resulting incidence of 1.6% is 4 times the highest figure previously reported. Single polyps were usually located in the antrum, multiple polyps in the body or fundus. Two-thirds were .gtoreq. 10 mm in diameter; only 1 was > 20 mm. Endoscopy was performed in 17 cases and showed normal or inflamed gastric mucosa with no evidence of neoplasia. Apparently most gastric polyps are inflammatory or hyperplastic, while the biopsies showing normal mucosa may represent small submucosal tumors such as leiomyomas. This study demonstrates the high frequency and innocuous nature of small gastric polyps.

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