During his treatment the Venezuelan leader is reported to have had tumours removed from his pelvic region.

BBC: Hugo Chavez returns to Venezuela after Cuba cancer care

Chavez has had tumors repeatedly removed from his pelvic region, and has also undergone prior rounds of chemotherapy and radiation treatment.

NPR: VP: Chavez Getting 'Complex And Tough' Treatments

He has said he has had tumors removed from his pelvic region, and has also undergone prior rounds of chemotherapy and radiation treatment.

NPR: Photos Of Hugo Chavez Shown After 2-Month Absence

The Venezuelan leader is reported to have had tumours removed from his pelvic region, and has also undergone prior rounds of chemotherapy and radiation treatment.

BBC: Venezuela's Hugo Chavez in first post-surgery images