Carcinoid tumors of the rectum.
Carcinoid tumors of the rectum are not uncommon. However, multiple rectal carcinoids are very rare but can occur. The behavior of the rectal carcinoids is different than that of carcinoid tumors in other areas of the gastrointestinal tract. All carcinoids are malignant, and management is based on size and depth of invasion.
D002276:Carcinoid Tumor / Q000473:pathology* / Q000601:surgery; D005260:Female; D006801:Humans; D008875:Middle Aged; D012004:Rectal Neoplasms / Q000473:pathology* / Q000601:surgery