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Archivos argentinos de pediatría

versión impresa ISSN 0325-0075versión On-line ISSN 1668-3501

Resumen

ALVAREZ-PABON, Yelitza; LOZANO-JIMENEZ, José F; DI LIZIO-MIELE, Katyna G  y  CONTRERAS-GARCIA, Gustavo A. Late infantile metachromatic leukodystrophy: case report. Arch. argent. pediatr. [online]. 2019, vol.117, n.1, pp.e52-e55. ISSN 0325-0075.  http://dx.doi.org/10.5546/aap.2019.e52.

Metachromatic leukodystrophy is an uncommon autosomal recessive disease caused by the deficiency of the arylsulfatase A lysosomal enzyme, which causes a progressive demyelin-ation with subsequent neurological manifestations. Between its manifestation forms, the one presenting in late childhood has the worst prognosis. Magnetic resonance plays an important role in the characterization of underlying abnormalities, which makes it possible to rule out other clinical conditions and approximate a diagnosis that is later confirmed by the appropriate molecular studies. Given the limited knowledge of the condition, coupled with a generally fatal clinical course, an early and accurate identification is fundamental in order to start palliative management and genetic counseling. A 24 months old female patient with psychomotor retardation history and imaging findings compatible with leukodystrophy is presented. Enzymatic and molecular studies confirmed a diagnosis of late childhood metachromatic leukodystrophy.

Palabras clave : Arylsulfatase A; Magnetic resonance imaging; Metachromatic leukodystrophy; Pediatrics; Developmental disabilities.

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