
Case Report
Author(s) -
Kornitzer Gaël A.,
Alvarez Fernando
Publication year - 2021
Publication title -
jpgn reports
Language(s) - English
Resource type - Journals
ISSN - 2691-171X
DOI - 10.1097/pg9.0000000000000087
Subject(s) - cholestasis , progressive familial intrahepatic cholestasis , gastroenterology , medicine , mutation , genetics , biology , gene , liver transplantation , transplantation
Benign recurrent intrahepatic cholestasis (BRIC) is a disease on the spectrum of familial intrahepatic cholestasis caused by homozygous ABCB11 or ATP8B1 mutations. In recent years, genetic testing has allowed for discovery of a variety of homozygous or compound heterozygous TJP2 mutations associated with progressive familial intrahepatic cholestasis and intrahepatic cholestasis of pregnancy. To our knowledge, no cases of BRIC caused by a single variant mutation of TJP2 have been reported. We describe a 15‐year‐old female presenting with recurrent episodes of jaundice, vomiting, with intense pruritus, anorexia, and weight loss. Blood work revealed elevated serum conjugated bilirubin and liver enzymes but normal gamma‐glutamyl transferase, consistent with BRIC. A genetic panel identified a not previously described single allele mutation in TJP2 of unknown functional significance. This is the first reported case of a clinical entity resembling BRIC with a heterozygous mutation in TJP2 , without associated mutations in other cholestasis‐related genes.