A 74-year-old woman who was treated as iron deficiency anemia for more than 8 years was admitted because of lassitude and palpitation. The Hb concentration was 6.6g/d
l, iron was 8
µg/d
l and occult blood in the stool was positive. Results of barium roentgenographic studies of the stomach, small intestine and large intestine were normal. Result of
99mTc-albumin scan was also normal.
Total colonoscopy revealed several vascular ectatic areas and small red discreted raised lesion in the sigmoid, descending, transverse, ascending colon and cecum. An arteriogram was performed and revealed a vascular tuft and early filling vein in right-sided colon.
The descending, transverse, ascending colon and cecum were resected and ileosigmoidostomy was performed. Results of a pathologic examination of the resected colon demonstrated multiple dilated distorted veins in submucosa.
Because of heigher predictive value, colonoscopy should be the first line investigation in the patients of chronic lower intestinal bleeding. After that, selective angiography should be performed to make accurate diagnosis as angiodysplasia.
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