Answers are grounded in this paper and cite their sources.
Four patients with chronic focal polymyositis are described. Treatment with steroids appeared to halt clinical progression. The clinical features in all four cases were so strikingly similar as to constitute a syndrome which can be mistaken for muscular dystrophy or spinal muscular atrophy unless investigated fully.
No takes yet. Share an insight, caveat, or question.
Bharucha et al. (1981) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: