Walker-Warburg syndrome is an autosomal-recessive genetic disorder cha
racterized by congenital muscular dystrophy in association with comple
x developmental abnormalities of the central nervous system and tile e
yes. Two patients with Walker-Warburg syndrome are presented to demons
trate clinical variability. Previously unreported pathologic findings
involving heart, muscle, spinal cord, and gall bladder are described,
and the literature is reviewed. Histopathologic studies of the muscle
membrane protein network in both Walker-Warburg syndrome patients reve
al a decreased immunostaining for laminin alpha 2 and beta-dystroglyca
n. The clinical, histologic, and biochemical variability in Walker-War
burg patients may reflect heterogencity. (C) 1995 by Elsevier Science
Inc. All rights reserved.