[Congenital fiber disproportion: atrophy of type I fibers. Report of 11 cases].
The authors report 11 cases of congenital disproportion of fibers, confirmed through clinical and complementary examinations. In these 11 cases early fibrotendinous retractions were frequent and CK proved to be high. At muscle biopsy histochemistry revealed a selective atrophy of type I fibers. This is a rarely frequent congenital dystrophy, of slow progression and benign evolution.
Departamento de Neurologia da Faculdade de Medicina, Universidade de São Paulo.
J A
JA
Levy
M S
MS
Alegro
E S
ES
Lusvarghi
P N
PN
Salum
A M
AM
Tsanaclis
A
A
Levy
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D009123:Muscle Hypotonia / Q000473:pathology; D009132:Muscles / Q000473:pathology; D009133:Muscular Atrophy / Q000151:congenital* / Q000235:genetics / Q000473:pathology
Desproporção congênita de fibras: atrofia de fibras tipo I. Relato de 11 casos.