Fig. 3
From: Adult-onset Still’s disease with multiple lymphadenopathy: a case report and literature review
Microscopic features. a. A small number of histiocytes (black arrows) have distorted and elongated nuclei with irregular shapes (HE, × 400);b. High endothelial venule proliferation in the paracortical area (HE, × 40);c. The proliferating histiocytic fraction of the paracortical area expresses S-100(Envison, × 100);d. Proliferating CD8-positive T cells in the paracortical zone (Envison, × 100)