Utility of [¹⁸F] Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography Scan in Inflammatory Myopathies: Case Report and Literature Review

Figure 2

Left proximal and distal quadriceps muscle biopsy. Mild lymphohistiocytic myositis by CD8+ T cells, with severe myonecrosis (50%). The muscle fibers are healthy appearing, with some affected areas characterized by myonecrosis, phagocytosis by CD68+ cells (macrophages), and regeneration. There is no vasculitis, granulomas, eosinophilia, or thrombosis. (a) CD8+ T cell infiltrate (Gomori trichrome stain) (white arrow). (b) CD 68+ cell infiltrate (hematoxylin and eosin stain) (black arrow).

(a)

(b)