Inclusion Criteria:  Histologically proven locally advanced or recurrent pelvic cancer (all subtypes, RECTAL, UROLOGICAL, GYNAE, SARCOMA) Aged over 18 years Undergoing a multi-visceral extended pelvic resection Requiring a vascular resection with or without the need for reconstruction as part of pelvic exenteration  Exclusion Criteria:  Strong evidence of metastatic or peritoneal disease No histological evidence of vascular structures resected at time of operation Insufficient patient follow-up (Minimum of 30 days) Insufficient information on post-operative follow-up of graft patency/function