Journal of Rheumatic Diseases

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Fig. 2. H&E stain (A) and immunohistochemistry (B∼D) of the muscle biopsy. (A) Myofibers show moderate size variation with degenerating cells with endomysial fibrofatty change (H&E, ×200). (B) Many degenerated myofibers show variation of size and positivity for CD56 (CD56 immunohistochemistry, ×100). Dystrophin (C) was robustly positive (Dystrophin 1 immunohistochemistry, ×200), yet dysferlin (D) was totally absent in the sarcolemmal membrane (Dysferlin immunohisto-chemistry, ×200).
J Rheum Dis 2021;28:101~106
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