Journal
JOURNAL OF HEPATOLOGY
Volume 39, Issue 2, Pages 239-244Publisher
ELSEVIER
DOI: 10.1016/S0168-8278(03)00191-0
Keywords
liver biopsy; chronic hepatitis; grading; staging; sample size
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Background/Aims: In chronic viral hepatitis, liver biopsy is performed for assessing disease activity and fibrosis. In this study, we evaluated the impact of the size of liver biopsy on the grading and staging. Methods: We selected 161 liver biopsies from patients with chronic types B and C hepatitis on the basis of their length (greater than or equal to3 cm) and width (1.4 mm). Ishak scoring system was used for grading and staging. The score was blindly repeated reducing the length of the specimen from greater than or equal to 3 to 1.5 cm and to 1 cm long and width from 1.4 to 1 mm. Results: Reducing the length of the biopsy led to an increase of cases with mild grades: 49.7 % in greater than or equal to 3 cm, 60.2 % in 1.5 cm and 86.6% in 1 cm long specimens (P < 0.001). Similarly, cases staged as having mild fibrosis significantly increased in the shorter specimens: 59 % in >= 3 cm, 68.3 % in 1.5 cm and 80.1 % in I cm long specimens (P < 0.001). As for the width, both grade and stage were significantly underscored in the I mm samples, regardless of their length. Conclusions: Liver biopsy size strongly influences the grading and staging of chronic viral hepatitis. The use of fine needles should be discouraged in this setting. (C) 2003 European Association for the Study of the Liver. Published by Elsevier Science B.V. All rights reserved.
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