RT Journal Article SR Electronic T1 Distal muscle involvement in granulomatous myositis can mimic inclusion body myositis JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 674 OP 677 DO 10.1136/jnnp.2009.190751 VO 82 IS 6 A1 Sandrine Larue A1 Thierry Maisonobe A1 Olivier Benveniste A1 Catherine Chapelon-Abric A1 Olivier Lidove A1 Thomas Papo A1 Bruno Eymard A1 Odile Dubourg YR 2011 UL http://jnnp.bmj.com/content/82/6/674.abstract AB The authors report on four patients aged over 50 with chronic myopathy suggestive of sporadic inclusion body myositis. They present progressive and selective weakness of the quadriceps femoris muscles. Asymmetrical and selective atrophy of the forearm muscles were noted in all, with more severe involvement of the flexors than the extensors. Biopsy revealed granulomatous myositis. Histological features of sporadic inclusion body myositis were lacking. Evidence for systemic sarcoidosis was found in one patient. Corticosteroid treatment was associated with a partial but significant improvement in two patients. Granulomatous myositis may mimic inclusion body myositis and may be steroid-responsive.