case_images: PMC5398416_01
case_images: Severe myofiber atrophy with necrosis and myocytolysis not associated with endomysial inflammation. Frozen section (hematoxylin-eosin).
case_images: 10.1177_1179547616688231-fig1.jpg
case_images: PMC5398416_01_10.1177_1179547616688231-fig1.jpg
case_images: fig1-1179547616688231
case_images: Prior to the initiation of corticosteroid and rituximab therapy, a muscle biopsy was performed and revealed a pauci-immune necrotizing myopathy with the absence of macrophage infiltration, inclusion bodies and vascular abnormalities (Figure 1).
case_images: CK trend over the course of days including when particular treatments were implemented.
case_images: 10.1177_1179547616688231-fig2.jpg
case_images: PMC5398416_01_10.1177_1179547616688231-fig2.jpg
case_images: fig2-1179547616688231
case_images: While continuing rituximab a corticosteroid taper was attempted; however, the CK relapsed toward 9000 IU/L, and he subsequently required an increase in corticosteroid dosing (Figure 2).