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Figure 1 | Arthritis Research & Therapy

Figure 1

From: Scleroderma-polymyositis overlap syndrome versus idiopathic polymyositis and systemic sclerosis: a descriptive study on clinical features and myopathology

Figure 1

Histopathologic muscle-biopsy images of SSc-PM overlap patient versus PM patient. Left side ( A, C, E ): SSc-overlap patient. Right side ( B, D, F ): PM patient. ( A) Hematoxylin & eosin (H&E) stain; upper marker, necrosis; lower marker, lymphocytic infiltrate; (B) H&E stain; marker, lymphocytic infiltrate; (C) MAC stain; markers, MAC upregulation; (D) MAC stain, no upregulation; (b v 02D7; (E) MHC class I stain, sarcolemmal MHC class I upregulation; (F) MHC class I stain, sarcolemmal and diffuse cytoplasmic MHC class I upregulation.

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