Tricho-hepatic-enteric syndrome (THES) without intractable diarrhoea

C. Poulton, G. Pathak, K. Mina, T. Lassman, D. N. Azmanov, E. McCormack, S. Broley, L. Dreyer, D. Gration, E. Taylor, M. OSullivan, A. Siafarikis, M. Ravikumara, H. Dawkins, N. Pachter, G. Baynam

Research output: Contribution to journalReview article

Abstract

Tricho-hepatic-enteric syndrome (THES) is a genetically heterogeneous rare syndrome (OMIM: 222470 (THES1) and 614602 (THES2)) that typically presents in the neonatal period with intractable diarrhoea, intra-uterine growth retardation (IUGR), facial dysmorphism, and hair and skin changes. THES is associated with pathogenic variants in either TTC37 or SKIV2L; both are components of the human SKI complex, an RNA exosome cofactor. We report an 8 year old girl who was diagnosed with THES by the Undiagnosed Disease Program-WA with compound heterozygous pathogenic variants in SKIV2L. While THES was considered in the differential diagnosis, the absence of protracted diarrhoea delayed definitive diagnosis. We therefore suggest that SKIV2L testing should be considered in cases otherwise suggestive of THES, but without the characteristic diarrhoea. We expand the phenotypic spectrum while reviewing the current knowledge on SKIV2L.

Original languageEnglish
Pages (from-to)110-114
Number of pages5
JournalGene
Volume699
DOIs
Publication statusPublished - 30 May 2019

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