Abstract
2/2024
vol. 75
Original paper
Classical autoimmune hepatitis and the IgG4-associated autoimmune hepatitis in paediatric patients
- Department of Gastroenterology, Hepatology, Feeding Disorders and Paediatrics, The Children’s Memorial Health Institute, Warsaw, Poland
- Department of Microbiology and Clinical Immunology, The Children’s Memorial Health Institute, Warsaw, Poland
- Department of Pathology, The Children’s Memorial Health Institute, Warsaw, Poland
Pol J Pathol 2024; 75 (2): 153-156
Online publish date: 2024/07/08
The IgG4-associated autoimmune hepatitis (IgG4-AIH) is a newly proposed disease entity characterised by the accumulation of the IgG4-expressing plasma cells in the liver. Its pathophysiology and clinical significance remain unclear and have poor evidence in the paediatric population. Thus, our study aims at comparing the group of paediatric patients with classical AIH and the IgG4-AIH.
We carried out a retrospective analysis of 23 children (median age 8.5 years) diagnosed with AIH, who were compared according to the presence of IgG4-positive plasma cells in the liver biopsy.
IgG4-AIH was defined if 10 or more IgG4 positive plasma cells/high-power field were found in the biopsy.
The presence of the IgG4 component seems to be clinically insignificant. That is why, the conventional immunosuppressive protocol should be considered the standard treatment in the case of the IgG4-associated AIH.
We carried out a retrospective analysis of 23 children (median age 8.5 years) diagnosed with AIH, who were compared according to the presence of IgG4-positive plasma cells in the liver biopsy.
IgG4-AIH was defined if 10 or more IgG4 positive plasma cells/high-power field were found in the biopsy.
The presence of the IgG4 component seems to be clinically insignificant. That is why, the conventional immunosuppressive protocol should be considered the standard treatment in the case of the IgG4-associated AIH.
Keywords
autoimmune hepatitis, immunoglobulin G4-related diseases, children
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