Fig. 2From: Plasma exchange for thrombotic microangiopathy secondary to dermatomyositis associated with acute kidney injury and complement activation: a case report with literature reviewMRI and histological findings of the dermal biopsy. MRI showed high intensity in the lesions of the bilateral thigh muscles in T2-weighted (a) and short tau inversion recovery (b) imaging. In a skin biopsy, a perivascular infiltration of inflammatory cells in the superficial dermis, slight basal liquefaction degeneration (arrow), and some apoptotic cells (asterisk) in the epidermis were observed (c). C5b-9 deposits on the endothelial cell wall of the dermal vasculature (d)Back to article page