The inflammation of polymyositis is mainly found in the endomysial layer of skeletal muscle, whereas dermatomyositis is characterized primarily by inflammation ...

24 сент. 2024 г. · Polymyositis is an idiopathic inflammatory myopathy that causes symmetrical, proximal muscle weakness; elevated skeletal muscle enzyme ...

Polymyositis is diagnosed based on endomysial lymphocytic infiltrate surrounding and occasionally invading non-necrotic muscle fibers accompanied by ...

6 мар. 2015 г. · Patients with a muscle biopsy showing endomysial cell infiltration with invasion of non-necrotic muscle fibers most probably have IBM.

7 февр. 2023 г. · Polymyositis, an autoimmune and chronic inflammatory myopathy, is characterized by symmetrical proximal muscle weakness due to the involvement of endomysial ...

The inflammatory infiltrate is located in the endomysial spaces and invades nonnecrotic muscle fibers that express HLA-I. This histological pattern, previously ...

16 мар. 2021 г. · Dermatomyositis is an autoimmune myopathy characterized by symmetric proximal muscle weakness and rash.

29 окт. 2021 г. · In the absence of endomysial inflammation, a diagnosis of probable polymyositis can be made if there is ubiquitous expression of MHC class I ...

24 сент. 2024 г. · Muscle biopsy shows muscle fibers in varying stages of inflammation, necrosis, and regeneration. Findings include focal endomysial infiltration ...

In polymyositis, histology is usually characterized by predominant endomysial CD8+ T cell infiltrates without vasculopathy, whereas in dermatomyositis, ...