RT Journal Article RT Generic T1 Comments on: Differential IgG4-Producing Plasma Cell Infiltration in Non- and Post-Transplant Plasma Cell Hepatitis. A1 Aguilera, Isabel A1 Sousa, Jose Manuel K1 GSTT1 K1 IgG4 K1 PC-rich R K1 liver transplant K1 plasma cells AB We read with interest the article by Horwich et al. about IgG4-producing plasma cells. The aim of the study was to use IgG4-positivity as a differential biomarker for distinct clinical presentations of plasma cell hepatitis before and after liver transplantation. They found a high degree of IgG4-PC infiltration more frequently associated with plasma cell rejection (PCR) than other types of AIH and concluded that IgG4-positivity might serve as a valuable diagnostic tool in the post-LT setting. PB Frontiers Media SA YR 2022 FD 2022-08-05 LK http://hdl.handle.net/10668/20756 UL http://hdl.handle.net/10668/20756 LA en NO Aguilera I, Sousa JM. Comments on: Differential IgG4-Producing Plasma Cell Infiltration in Non- and Post-Transplant Plasma Cell Hepatitis. Transpl Int. 2022 Aug 5;35:10590. DS RISalud RD Apr 8, 2025