The significance of colonoscopic follow up is discussed controversially. Colonoscopy after resection of @entity14 offers the possibility of direct inspection and to take biopsies for the early detection of local recurrence or additional @entity5 . In a retrospective study we examined the benefit of regular colonoscopies. Between 1/1995 and 4/1996 237 colonoscopies were performed on 164 @entity1 after resection of @entity14 . The evaluation was done due to the stage of the @entity5 , the age of the @entity1 , the time after operation and the number of previous colonoscopies. 54 @entity652 were found in 35 of 164 @entity1 . 32% of the @entity652 were diagnosed in the ascending colon or colon transversum. Additionally three @entity189 were found. There were two local recurrences and one @entity34 . Two @entity1 were diagnosed without clinical symptoms and were able to undergo potential curative resection again. Because of the number and the localisation of diagnosed @entity5 colonoscopic surveillance should be performed every six months in the first two years after resection of @entity14 .

[Value of colonoscopy in XXXX after-care after @entity14 ].

@entity1 :: ('9606', 'Species') :: ['patients'] @entity5 :: ('MESH:D009369', 'Disease') :: ['primary tumor', 'neoplasms'] @entity189 :: ('MESH:D002277', 'Disease') :: ['carcinomas'] @entity14 :: ('MESH:D015179', 'Disease') :: ['colorectal cancer'] @entity652 :: ('MESH:D000236', 'Disease') :: ['adenomas'] @entity34 :: ('MESH:D016609', 'Disease') :: ['metachronous neoplasm']
@entity5 :: (MESH:D009369,Disease) :: ['tumor']
