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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/36473
Title: Inclusion body myositis and sarcoid myopathy: Coincidental occurrence or associated diseases
Authors: Oranee Sanmaneechai
Andrea Swenson
Alicia K. Gerke
Steven A. Moore
Michael E. Shy
University of Iowa Hospitals & Clinics
Mahidol University
Keywords: Medicine
Issue Date: 1-Apr-2015
Citation: Neuromuscular Disorders. Vol.25, No.4 (2015), 297-300
Abstract: © 2014 Elsevier B.V. Inclusion body myositis (IBM) is a slowly progressive inflammatory myopathy characterized by selective weakness of finger flexors and quadriceps muscles commonly refractory to treatment. Another chronic inflammatory disorder, sarcoidosis, commonly involves muscle. The comorbidity of inclusion body myositis and sarcoid myopathy is rare. We describe clinical and muscle biopsy findings of a patient with sarcoidosis and inclusion body myositis. A 66-year-old man presented with a 6-year history of progressive, asymmetrical and selective weakness of the quadriceps, biceps and finger flexor muscles; he had a remote history of pulmonary sarcoidosis. A quadriceps muscle biopsy revealed a chronic inflammatory myopathy with ubiquitinated inclusion bodies, rimmed vacuoles, expression of major histocompatibility complex class I, numerous COX-negative fibers and TDP-43 cytoplasmic aggregates (features of IBM) and multiple non-necrotizing granulomata (feature of sarcoidosis). Clinical and histopathologic features of the current illness suggested the patient had sarcoidosis with inclusion body myositis overlap. This patient may represent the coincidental occurrence of both idiopathic inflammatory disorders. Alternatively, sarcoidoisis may promote the development of inclusion body myositis by a similar immune-mediated pathophysiologic process.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84925281355&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/36473
ISSN: 18732364
09608966
Appears in Collections:Scopus 2011-2015

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