Publications by authors named "H P Dienes"

Histological subtyping of hepatocellular carcinoma (HCC) is challenging in the presence of histological heterogeneity, where distinctly different morphological patterns are present within the same tumor. Current approaches rely on percent cut-offs. We hypothesized that morphologic intratumor heterogeneity is a non-random biological feature and that incorporating recurrent patterns would improve histological subtyping of HCC.

View Article and Find Full Text PDF
Article Synopsis
  • Liver biopsies have been crucial in understanding the causes and development of acute liver diseases, although their role has evolved with new diagnostic methods.
  • While they are not mandatory in clinical guidelines for acute liver failure (ALF) and acute-on-chronic liver failure (ACLF), many medical centers continue to perform them because they are relatively safe and provide important prognostic information.
  • The increasing use of liver biopsies for diagnosing less severe acute liver injuries has led to a shift in the types of specimens analyzed, emphasizing the need for histopathologists to be prepared for these complex cases.
View Article and Find Full Text PDF

Background & Aims: Infection with the hepatitis D virus (HDV) causes the most severe form of viral hepatitis with a high risk to develop clinical complications of liver disease. In addition, hepatitis delta has been shown to be associated with worse patient-reported outcomes. Until recently, only pegylated interferon alfa could be used to treat hepatitis delta.

View Article and Find Full Text PDF

Background & Aims: Diagnostic histological criteria for autoimmune hepatitis (AIH) have not been clearly established. Previously published criteria focused mainly on chronic AIH, in which inflammatory changes mainly occur in portal/periportal regions and may not be applicable to acute presentation of AIH, in which inflammatory changes are typically predominantly lobular in location. International consensus criteria for the diagnosis and assessment of disease severity in both acute and chronic AIH are thus urgently needed.

View Article and Find Full Text PDF