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J Child Neurol. 2013 Nov;28(11):1500-1504. Epub 2012 Sep 10.

Novel Mutations in FA2H-Associated Neurodegeneration: An Underrecognized Condition?

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  • 11Department of Medical Genetics, University of British Columbia, Canada.

Abstract

Hereditary spastic paraplegias and related genetically heterogeneous disorders may be difficult to distinguish clinically. The FA2H gene has been associated with autosomal recessive neurodegenerative phenotypes encompassing spastic paraplegia with or without dystonia, and demyelinating leukodystrophy. To date, few individuals with mutations in the FA2H gene have been described. We report a 5-year-old girl of mixed Filipino and Vietnamese origin who presented with progressive lower limb spasticity and periventricular leukomalacia. The clinical diagnosis of FA2H-associated neurodegeneration was confirmed on the basis of 2 novel mutations in compound heterozygosity in the FA2H gene (p.S70L/p.P323L). This family highlights that FA2H-associated disorders may be underrecognized in children with neurodegeneration of many different ethnicities. Magnetic resonance imaging features play an important role as diagnostic clues in this and other hereditary spastic paraplegias. The consideration of this diagnosis is essential in providing families with important information on prognosis, as well as accurate genetic counseling.

KEYWORDS:

FA2H ; HSP; SPG35; hereditary spastic paraplegia; leukodystrophy; spastic paraparesis with dystonia

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