Computed tomographic patterns of pseudohypertrophic muscular dystrophy: preliminary results.

At present, the diagnosis of pseudohypertrophic muscular dystrophy (PHMD) rests on the clinical picture and the pattern of inheritance and is supported by electrodiagnostic, histologic, and histochemical techniques. In this report we describe the observed computed tomography (CT) changes in six patients with PHMD and compare these abnormal CT scans with scans of the same anatomic region in 16 normal individuals. Scans of patients with polymyositis and sarcoid myopathy are shown for comparison. Two CT patterns, frequently observed in our series, are described.