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Chapter 25
Anus, Rectum, and Prostate
Term | Definition |
---|---|
Fissure | painful longitudinal tear in tissue, e.g., in the superficial mucosa at the anal margin |
Hemorrhoid | flabby papules of skin or mucous membrane in the anal region caused by a varicose vein in the hemorrhoidal plexus |
Melena | blood in the stool |
Pruritus | itching or burning sensation in the skin |
Steatorrhea | excessive fat in the stool as in gastrointestinal malabsorption of fat |
Valves of Houston | one of three semilunar transverse folds that cross one-half of the circumference of the rectal lumen |