Colonoscopy after CT-diagnosed XXXX : Is it really necessary?

@entity1 @entity32 @entity697 @entity66 @entity5 @entity14 @entity4436
BACKGROUND: Computed tomography (CT) scans are commonly used to diagnose @entity697 , but there are overlapping features between @entity4436 and @entity14 ( @entity14 ) on imaging studies. Hence, colonoscopy is typically recommended after an episode of @entity697 to rule out underlying @entity5 . Currently, 64-slice multidetector CT scanners are capable of providing higher-resolution images and may be able to distinguish @entity5 from @entity32 . We aimed to determine the prevalence of @entity14 among @entity1 with CT-diagnosed @entity697 . METHODS: We performed a retrospective study of @entity1 with @entity697 diagnosed on CT scan between December 2005 and December 2010 at St. Paul's Hospital, Vancouver, BC. Nonresidents were excluded. We reviewed CT scan reports that included the term " @entity4436 ," reports of follow-up colonic evaluation within 1 year of diagnosis and pathology results. We queried the provincial @entity5 registry to ensure no cases of @entity14 were missed. RESULTS: A total of 293 @entity1 had @entity697 diagnosed on CT scan, but 8 were nonresidents and were excluded. Of the 285 included in the analysis, the mean age was 59.4    15.1 years, and 167 (58.6%) were @entity1 . Among the 114 @entity1 who underwent follow-up evaluation, @entity5 was diagnosed in 4 (3.5%). The overall prevalence of @entity5 among @entity1 with CT-diagnosed @entity4436 was 1.4%. CONCLUSION: Routine endoscopic evaluation after an episode of @entity4436 diagnosed with high-resolution CT scan does not appear to be necessary. Selective approach in @entity1 with protracted clinical course or those with @entity66 /obstruction on CT scan may be of benefit.
