Figure 5: (a) Multiple tender purplish indurated patches on the both forearm and lower extremities. (b) A dense lymphoid infiltrate located in the subcutaneous tissue (H&E, × 40). (c) A focal rimming of adipocytes by atypical lymphocytes, karyorrhexis, and phagocytic macrophages in the subcutaneous tissue (H&E, × 100). ((d), (e), (f), (g)) Immunohistochemical staining showed (d) CD3 (+), (e) CD8 (+), (f) βF1 (+), and (g) T-cell intracellular antigen-1 (+) (H&E, × 200).