Angiosarcoma of gastrointestinal tract is extremely rare. Since 1948, we can find only six reported cases of primary colonic angiosarcoma. The review of the six reported cases and a report on the first colonic angiosarcoma to be seen in an adolescent male are presented. The treatment of the colon angiosarcoma is wide surgical excision. The prognosis is poor. Our case is the second one to be alive, more than 18 months after surgery, with no evidence of recurrent disease.