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Infantile onset alexander disease with normal head circumference: a genetically proven case report.

ABSTRACT: Alexander disease (AD) is an autosomal dominant leukodystrophy which predominantly affects infants and children. The infantile form comprises the most common form of AD. It presents before two years of age and characterized by macrocephaly, psychomotor regression, spasticity, pyramidal sign, ataxia and seizures. The diagnosis is based on magnetic resonance imaging (MRI) findings and confirmed by Glial fibrillary acidic protein (GFAP) gene molecular testing. We report an Indian case with normal head circumference.

SUBMITTER: Goyal M

PROVIDER: S-EPMC4290301 | biostudies-literature | 2014 Nov

REPOSITORIES: biostudies-literature

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Infantile onset alexander disease with normal head circumference: a genetically proven case report.

Goyal Manisha M Mehndiratta Sumit S Faruq Mohammed M Dwivedi Manish Kumar MK Kapoor Seema S

Journal of clinical and diagnostic research : JCDR 20141120 11

Alexander disease (AD) is an autosomal dominant leukodystrophy which predominantly affects infants and children. The infantile form comprises the most common form of AD. It presents before two years of age and characterized by macrocephaly, psychomotor regression, spasticity, pyramidal sign, ataxia and seizures. The diagnosis is based on magnetic resonance imaging (MRI) findings and confirmed by Glial fibrillary acidic protein (GFAP) gene molecular testing. We report an Indian case with normal h ...[more]

PMID: 25584279

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Project description:BackgroundHermansky-Pudlak syndrome (HPS) is a rare, genetically heterogeneous disorder that manifests oculocutaneous albinism together with bleeding diatheses that reflect a platelet storage pool deficiency. Ten genetic subtypes of this autosomal recessive condition have been described to date. Some patients with Hermansky-Pudlak syndrome type 1, 4, or 6 develop Crohn's-like inflammatory bowel disease at any age including early childhood, but most often in adolescence or young adulthood. Here we report infantile-onset of inflammatory bowel disease in a patient with Hermansky-Pudlak syndrome type 1 who responded to infliximab.Case presentationA Japanese boy, the second child of non-consanguineous healthy parents, was born with chalky white skin, silvery-white hair, and gray eyes, representing oculocutaneous albinism. He developed frequent diarrhea and fever accompanied by weight loss at 6 months, and was diagnosed with Crohn's-like inflammatory bowel disease based on the endoscopic finding of longitudinal ulcerations in the colon and the histopathologic finding of nonspecific chronic inflammation without granulomas at the age of 11 months. Treatment with an elemental diet, salazosulfapyridine, and corticosteroids failed to improve clinical or laboratory abnormalities, and the diarrhea became bloody. At 13 months he began treatment with infliximab, which produced marked improvement followed by clinical remission. Endoscopy at 20 months demonstrated healing of the colonic mucosa. At 22 months he is in sustained clinical remission receiving only infliximab. Because albinism with inflammatory bowel disease suggested Hermansky-Pudlak syndrome, we performed genetic screening using next-generation sequencing in a targeted gene panel analysis for primary immunodeficiency disease and/or inflammatory bowel disease. The patient proved to have a compound heterozygous mutation of the HPS1 gene resulting in Hermansky-Pudlak syndrome type 1.ConclusionsWe consider this report to be the first account of type 1 Hermansky-Pudlak syndrome with infantile-onset of inflammatory bowel disease. Early administration of infliximab was effective. We recommend next-generation sequencing for patients with very early-onset inflammatory bowel disease suspected to be monogenic.

Dataset Information

Infantile onset alexander disease with normal head circumference: a genetically proven case report.

Publications

Infantile onset alexander disease with normal head circumference: a genetically proven case report.

Similar Datasets

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