New concept in histopathological grading and staging of chronic hepatitis C infection at Sharkia Governorate, Egypt.

Hepatitis C virus (HCV) has been estimated by the WHO to infect 170 million patients worldwide, with a high prevalence rate (about 24.5%) among Egyptians. The disease could be presented with variable hepatic lesions ranging from mild inflammation, fibrosis, cirrhosis to even end stage liver disease and hepatocellular carcinoma. The Knodell histology activity index, published in 1981, was the first system of its type and is widely regarded as the benchmark for objective, semiquantitative reproducible description of the various morphological lesions of chronic hepatitis. Other proposals for semiquantitative evaluation have followed. In this study, when applying these systems on our cases (109 liver biopsies taken