ABSTRACT
Rectal tumors are in a unique location in that they are easily accessible to an examining
finger, endoscopic and endoluminal ultrasonographic evaluation, local excision, and
radiation therapy. Additionally, removal of the rectum may require a permanent stoma
if the sphincter is not salvageable. Finally, the rectum may be affected by a wide
variety of tumors, both benign and malignant, which are uncommon in occurrence and
not well understood in their behavior and optimal treatment options. This article
will review these rare tumors of the rectum, including lymphoma, neuroendocrine and
carcinoid tumors, smooth muscle tumors (leiomyoma and leiomyosarcoma), adenosquamous
carcinoma, AIDS-related rectal neoplasms, metastases to the rectum, rectal endometriosis,
and cavernous hemangiomas of the rectum.
KEYWORD
Lymphoma - tumor - rectum - endometriosis - hemangioma