[Diagnostic 99mTc-labeled red blood cells scintigraphy in gastrointestinal tract bleeding from an intestinal pyogenic granuloma].

99mTc-labeled red blood cells (RBCs) scintigraphy was useful to detect the site of gastrointestinal (GI) tract bleeding in a 30-year-old woman. Other examinations, double-contrast barium meal study, fiberscopy and conventional contrast arteriography were unsuccessful in diagnosis. A surgical treatment was performed and GI tract bleeding from ileal pyogenic granuloma was proved. In this case the patient had no other obvious hemangioma or pyogenic granuloma. Pyogenic granuloma occurs most commonly on the exposed skin areas and very rare on the intestine.