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Figure 1: (a) Low power view showing a dermal histiocytic lesion (hematoxylin and eosin staining (H and E, ×10). (b) Histiocytes with pale cytoplasm and cleft nuclei (H and E, ×40). (c) Scattered inflammatory cells admixed with the histiocytes (H and E, ×20). (d) CD68 positivity immunohistochemical staining (IHC), ×40). (e) S-100 positivity (IHC, ×40). (f) Negative CD1a staining (IHC, ×40)

Figure 1: (a) Low power view showing a dermal histiocytic lesion (hematoxylin and eosin staining (H and E, ×10). (b) Histiocytes with pale cytoplasm and cleft nuclei (H and E, ×40). (c) Scattered inflammatory cells admixed with the histiocytes (H and E, ×20). (d) CD68 positivity immunohistochemical staining (IHC), ×40). (e) S-100 positivity (IHC, ×40). (f) Negative CD1a staining (IHC, ×40)