SARCOID MYOPATHY - IMAGING FINDINGS

Sarcoidosis is a granulomatous multisystem disorder that may uncommonl y involve muscle. Muscular sarcoid may be nodular, atrophic myopathic, or acute myositic. We illustrate a case of the myopathic type of musc ular sarcoid that is unusual because the abdominal wall muscles, rathe r than the extremity muscles, were involved. Muscular involvement by s arcoid should be considered in the differential diagnosis of focal mus cle disease, especially in a patient with a known history of sarcoid. The presence of typical bilateral hilar adenopathy on a chest radiogra ph as well as the presence of abdominal findings (hepatosplenomegaly a nd retroperitoneal adenopathy) may help establish the diagnosis. Other wise, sonographically guided biopsy may be necessary for definitive di agnosis. (C) 1997 John Wiley & Sons, Inc.