Journal
DIGESTIVE ENDOSCOPY
Volume 26, Issue 2, Pages 276-281Publisher
WILEY-BLACKWELL
DOI: 10.1111/den.12140
Keywords
biliary tract; biopsy; cholangiocarcinoma; cytology; endoscopy
Categories
Ask authors/readers for more resources
Background and AimVarious methods for endoscopic transpapillary sampling have been developed. However, the factors affecting the accuracy of these methods for bile duct cancer are unknown. The aim of the present study was to determine the factors affecting the accuracy of endoscopic transpapillary sampling methods. MethodsWe reviewed the results from 101 patients with bile duct cancer who underwent transpapillary sampling by aspiration bile cytology, brushing cytology, and fluoroscopic forceps biopsy. The final diagnosis of bile duct cancer was made on the basis of pathological evaluation of specimens obtained at surgery and the clinical course over at least 1 year in patients not operated on. We carried out subgroup analyses for the factors affecting the accuracy of each transpapillary sampling method. ResultsAspiration bile cytology was carried out 238 times in 77 patients, brushing cytology was carried out 67 times in 60patients, and fluoroscopic forceps biopsy was carried out 64 times in 53 patients. Accuracies of aspiration bile cytology were significantly higher for longer (15mm) biliary cancerous lesions than for shorter (<15mm) lesions (30% vs 18%, respectively, P=0.049). Accuracies of brushing cytology and fluoroscopic forceps biopsy were significantly higher for non-flat than for flat-type biliary cancerous lesions (brushing: 58% vs 38%, respectively, P=0.032; forceps biopsy: 60% vs 33%, respectively, P=0.043). ConclusionEndoscopic transpapillary sampling methods are more accurate for longer or elevated (non-flat) biliary cancerous lesions than for shorter or flat lesions.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available