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  Indian J Med Microbiol
 

Figure 1: 1a, b H & E sections demonstrating at low and high magnification epidermal hyperplasia with pseudo-horn cyst formation and a moderately dense, superficial dermal perivascular infiltrate(red arrows). 1c, IHC staining for cytokeratin AE1/AE3 revealing strong epidermal staining in the epidermis, sparing basaloid keratinocytes (brown staining; red arrows). 1d and 1e, IHC demonstrating strong, punctate expression of myeloid/histoid antigen throughout the entire epidermis, with some marking of basaloid keratinocytes(brown staining; red arrows). 1f and 1g, reveal strong staining with LAT in the superficial dermal perivascular infiltrate, and in the dermal papillae (dark brown staining; red arrows). 1h and 1i, strong staining with CD1a around upper dermal blood vessels, in the basement membrane zone (BMZ), in epidermal keratinocytes, and in the dermal papillae (dark brown staining; red arrows). 1j Strong staining with COX-2 around upper dermal blood vessels, below the BMZ, and in the dermal papillae (dark brown staining; red arrows). 1k and 1l , strong staining with CD68 around the upper dermal blood vessels, below the BMZ, and in the dermal papillae (dark brown staining; red arrows).

Figure 1: <b>1a, b</b> H & E sections demonstrating at low and high magnification epidermal hyperplasia with pseudo-horn cyst formation and a moderately dense, superficial dermal perivascular infiltrate(red arrows). <b>1c,</b> IHC staining for cytokeratin AE1/AE3 revealing strong epidermal staining in the epidermis, sparing basaloid keratinocytes (brown staining; red arrows). <b>1d</b> and <b>1e,</b> IHC demonstrating strong, punctate expression of myeloid/histoid antigen throughout the entire epidermis, with some marking of basaloid keratinocytes(brown staining; red arrows). <b>1f</b> and <b>1g,</b> reveal strong staining with LAT in the superficial dermal perivascular infiltrate, and in the dermal papillae (dark brown staining; red arrows). <b>1h</b> and <b>1i,</b> strong staining with CD1a around upper dermal blood vessels, in the basement membrane zone (BMZ), in epidermal keratinocytes, and in the dermal papillae (dark brown staining; red arrows). <b>1j</b> Strong staining with COX-2 around upper dermal blood vessels, below the BMZ, and in the dermal papillae (dark brown staining; red arrows). <b>1k</b> and <b>1l</b> , strong staining with CD68 around the upper dermal blood vessels, below the BMZ, and in the dermal papillae (dark brown staining; red arrows).