Serum ferritin and stool occult blood and colon cancer screening.


A group of 531 participants age 50 years or older were evaluated for colonic polyps and malignancy with stool occult blood testing, hemoglobin, hematocrit, serum ferritin, flexible fiberoptic sigmoidoscopy, and colonoscopy. Screening revealed 1 colorectal cancer, 2 malignant polyps, 30 hyperplastic polyps, 69 adenomatous polyps, 4 villous adenomas, and 2… (More)


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