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Fig. 1 | BMC Rheumatology

Fig. 1

From: Initial seronegative immune-mediated necrotising myopathy with subsequent anti-HMGCR antibody development and response to rituximab: case report

Fig. 1

Histopathology from muscle biopsy at time of initial diagnosis. a Haematoxylin and eosin stain demonstrating a pale necrotic fibre (arrow). b Haematoxylin and eosin stain demonstrating a basophilic regenerating fibre (arrow). c MHC class I stain demonstrating patching upregulation of MHC class I. d CD68 stain demonstrating a necrotic fibre infiltrated by macrophages

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