Abstract
Leiomyomas and leiomyosarcomas may occur anywhere in the gastrointestinal tract, but those tumors of the colon and rectum are rare.
Only 8 cases of leiomyosarcoma in the colon and 30 cases of leiomyoma in the rectum have been reported in the literatures in Japan.
Recently, we have observed 2 cases of leiomyoma in the rectum and a case of leiomyosa-rcoma in the ascending colon.
These three cases were reported and we reviewed 9 cases of leiomyosarcoma in the colon and 32 cases of leiompoma in the rectum.
