期刊
CLINICAL DYSMORPHOLOGY
卷 28, 期 1, 页码 22-25出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/MCD.0000000000000250
关键词
autosomal recessive disorder; chronic intestinal pseudo-obstruction; mitochondrial neurogastrointestinal encephalomyopathy; thymidine phosphorylase
Mitochondrial neurogastrointestinal encephalopathy (MNGIE) is an autosomal recessive disorder characterized by gastrointestinal dysmotility, cachexia, ptosis, peripheral neuropathy and leukoencephalopathy. The diagnosis is often not made until 5-10 years after the onset of symptoms. MNGIE is caused by mutations in thymidine phosphorylase gene TYMP. Here, we present a 19-year-old boy with MNGIE who had a chronic intestinal pseudo-obstruction, and we describe his family history. Genetic analysis revealed a novel homozygous c.765+1G>C intronic mutation which is expected to disrupt splicing of TYMP in the patient. Family screening revealed that the brother was also affected and the mother was a carrier. MNGIE should be considered and genetic testing instigated if individuals with cachexia have neuromuscular complaints or symptoms of chronic intestinal pseudo-obstruction. Copyright (c) 2018 Wolters Kluwer Health, Inc. All rights reserved.
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