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Inclusion body myositis (IBM). Morphological study
A Fidziańska1, H Drac, Z Glinka
1Department of Neurology, School of Medicine, Polish Academy of Sciences, Warsaw.
Abstract:
Among the chronic idiopathic inflammatory myopathies inclusion body myositis (IBM) has emerged as a clinicopathologic variant. Slowly progressive weakness of the distal and the proximal muscle groups, the presence of rimmed vacuoles with basophilic granules as well as 15-18-nm filamentous inclusions in affected muscle confirm the clinical and histopathological distinction between inclusion body myositis and chronic polymyositis.