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A rare cause of infantile achalasia: GMPPA-congenital disorder of glycosylation with two novel compound heterozygous variants.

ABSTRACT: Achalasia is rare in the pediatric population and should prompt clinicians to consider genetic disorders associated with this condition. While AAA syndrome (also known as Allgrove or Triple A syndrome) is commonly considered, GMPPA-congenital disorder of glycosylation (CDG) should also be in the differential diagnosis. We report a 9-month-old female born to nonconsanguineous parents with achalasia and alacrima found to have two novel compound heterozygous variants in the GMPPA gene associated with GMPPA-CDG. This rare disorder is commonly associated with developmental delay and intellectual disability. We discuss management of this disorder including the importance of confirming a genetic diagnosis and summarize reported cases.

SUBMITTER: Geiculescu I

PROVIDER: S-EPMC9283290 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature

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A rare cause of infantile achalasia: GMPPA-congenital disorder of glycosylation with two novel compound heterozygous variants.

Geiculescu Irina I Dranove Jason J Cosper Graham G Edmondson Andrew C AC Morava-Kozicz Eva E Carter Lauren B LB

American journal of medical genetics. Part A 20220604 8

Achalasia is rare in the pediatric population and should prompt clinicians to consider genetic disorders associated with this condition. While AAA syndrome (also known as Allgrove or Triple A syndrome) is commonly considered, GMPPA-congenital disorder of glycosylation (CDG) should also be in the differential diagnosis. We report a 9-month-old female born to nonconsanguineous parents with achalasia and alacrima found to have two novel compound heterozygous variants in the GMPPA gene associated wi ...[more]

PMID: 35665995

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