Chronic neurogenic quadriceps amyotrophy

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Abstract
Two patients with chronic neurogenic quadriceps amyotrophy are reported. A 61‐year‐old woman had symmetrical wasting and weakness of the quadriceps femoris of eight years' duration. A biopsy revealed neuropathic changes, and electromyograms showed neurogenic as well as myopathic patterns in the quadriceps and other muscles. A 29‐year‐old woman had long‐standing wasting limited to the quadriceps and hip muscles. EMG and biopsy were compatible with neurogenic atrophy. She had a brother suffereing from a more widespread and severe form of the disease. These cases suggest that chronic neurogenic quadriceps amyotrophy is a forme fruste of Kugelberg‐Welander disease.

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