A novel mutation in TRMT5 associated with idiopathic non-cirrhotic portal hypertension and hepatopulmonary syndrome: Case report of two siblings
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Date
2022
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Abstract
Non-cirrhotic portal hypertension (NCPH) is a rare clinical entity in children. Familial clusters of idiopathic non-cirrhotic portal hypertension (INCPH) were previously reported in cases with deoxyguanosine kinase (DGOUK) and potassium calcium-activated channel subfamily N member 3 (KCNN3) mutations. Herein, we report two siblings who had a novel mutation in mitochondrial tRNA methyltransferase 5 (TRMT5) gene and presented with hepatopulmonary syndrome and later diagnosed as INCPH. Autosomal recessive inheritance of this mutation may suggest a role of TRMT5 mutations in the development of NCPH. Screening of TRMT5 mutations could be considered when familial INCPH is suspected. ?? 2022 Elsevier Masson SAS. All rights reserved.
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Keywords
Idiopathic noncir-rhotic portal hyper-tension (INCPH), Hepatopulmonary syndrome, TRMT5, Case report