Transpapillary biliary forceps biopsy to distinguish benign biliary stricture from malignancy: How many tissue samples should be obtained?

Hiroki Kawashima, Akihiro Itoh, Eizaburo Ohno, Hidemi Goto, Yoshiki Hirooka

研究成果: Article査読

30 被引用数 (Scopus)

抄録

Background: The sensitivity of transpapillary biliary forceps biopsy for malignancy has been reported as varying from 43-81%. Therefore, there are false negatives in more than 20% of patients, which makes it difficult to diagnose benign biliary stricture as benignancy in a clinical setting. Methods: To clarify the number of tissue samples that should be obtained during transpapillary forceps biopsy to distinguish benign biliary stricture from malignancy, patients undergoing transpapillary biliary forceps biopsy at our institute were examined retrospectively in this study. Results: Seventy-two biliary forceps biopsy procedures were performed on 61 patients. The final diagnoses were malignant biliary stricture in 34 patients and benign stricture in 27 patients. The overall sensitivity and specificity for malignancy in this study were 76.5% and 100%, respectively. There were zero out of 10 (0%) false-negative patients when three or more tissue samples were obtained. In contrast, when four or more tissue samples were obtained, eight out of eight (100%) patients had negative diagnoses for malignancy and were finally diagnosed with benignancy. Conclusion: We suggest that three or more tissue samples are recommended for the diagnosis of biliary malignant stricture.

本文言語English
ページ(範囲)22-27
ページ数6
ジャーナルDigestive Endoscopy
24
SUPPL. 1
DOI
出版ステータスPublished - 05-2012
外部発表はい

All Science Journal Classification (ASJC) codes

  • 放射線学、核医学およびイメージング
  • 消化器病学

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