The Neurological Aspects of Dermatomyositis

Generalized myositis mimicking polymyositis associated with chronic active Epstein-Barr virus infection

“…For example, in two of our three patients and four of the previous five cases, orbital or lingual myositis was shown as the initial symptom. Orbital and lingual myositis are rare manifestations of polymyositis/dermatomyositis [5,10,22,27]. About 1-2 % of patients with polymyositis/dermatomyositis have orbital myositis or ophthalmoplegia.…”

Muscular Lesion in Chronic Polymyositis

“…However, it is particularly the differential diagnosis between progressive muscular dystrophy and chronic polymyositis which has given rise to difficulties after Keil, in 1940, described a patient whose condition had been interpreted for many years as muscular dystrophy, but who was actually suffering from chronic polymyositis. Matthews & Burne (1953) have reported a similar case. Zieler & Lz'lienthal (1953) pointed out that a few cases of progressive muscular dystrophy might be due to previous polymyositis and described two misinterpreted cases of their own.…”