Benign familial spinal muscular atrophy with hypertrophy of the calves.
D000328:Adult; D006801:Humans; D006984:Hypertrophy / Q000150:complications / Q000235:genetics* / Q000473:pathology; D007866:Leg; D008297:Male; D008875:Middle Aged; D009132:Muscles / Q000473:pathology*; D009133:Muscular Atrophy / Q000150:complications / Q000235:genetics* / Q000473:pathology; D013131:Spine