Main clinical features
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distal muscle weakness and atrophy and distal sensory loss, and possible association with FSGS, including proteinuria, progression to end-stage renal disease, and a characteristic histologic pattern on renal biopsy
walking difficulties in infancy, requiring orthopedic corrections, and hand weakness; weakness of the peroneal and anterior tibial muscles with steppage gait
median age of onset of proteinuria was 18 years, and median age at onset of neurologic dysfunction was 13 years |