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Proximal and distal muscle weakness in a patient with CMT4J. At the age of 19 years, Patient S3 demonstrated several features of proximal muscle wasting. (A) Wasted tongue with ‘triple furrow’ sign and (B) foot deformity and cocked up toes. The difference in leg length follows a left femoral fracture. (C) Proximal and distal wasting of the upper limb.
