Supplemental figures: Clinicopathologic comparison of Rowell syndrome, erythema multiforme, and subacute cutaneous lupus erythematosus

Figure 2: Subacute cutaneous lupus erythematosus. A: Polycyclic erythematous plaques with peripheral scale. B and C: Cell-poor interface dermatitis, epidermal atrophy, and sparse lymphocytic infiltrate with abundant dermal mucin (B: H&E, 40x magnification; C: H&E, 200x magnification). D: Perieccrine plasmacytoid dendritic cells highlighted by CD123 (CD123 with red chromagen, 400x magnification). Figure 3: Erythema multiforme. A: Typical target with three zones of color change and central vesiculation. B: Orolabial erosions. C: Lichenoid interface dermatitis with partial epidermal necrosis. D: Absence of perieccrine plasmacytoid dendritic cells (CD123 with red chromagen, 200x magnification).图2：亚急性皮肤型红斑狼疮（Subacute cutaneous lupus erythematosus）。A：伴外周鳞屑的多环性红斑斑块。B与C：细胞稀少型界面性皮炎、表皮萎缩，以及伴大量真皮黏蛋白的稀疏淋巴细胞浸润（B：苏木精-伊红（Hematoxylin and Eosin，H&E）染色，放大40倍；C：苏木精-伊红（Hematoxylin and Eosin，H&E）染色，放大200倍）。D：CD123（红色显色剂）标记的汗腺周围浆细胞样树突状细胞，放大400倍。图3：多形红斑（Erythema multiforme）。A：典型靶形损害，伴三色改变及中央水疱形成。B：口唇糜烂。C：伴部分表皮坏死的苔藓样界面性皮炎。D：未检出汗腺周围浆细胞样树突状细胞（CD123红色显色剂，放大200倍）。