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  Indian J Med Microbiol
 

Figure 2: Unusual variants of Grover disease: (a) Vertical column of parakeratosis resembling cornoid lamella (arrow) in an otherwise typical case (porokeratotic variant) (×10). (b) Lentigo-like interdigitating epidermal hyperplasia with mild basal hyperpigmentation and subtle foci of suprabasal acantholysis (arrow) (lentiginous variant) (×10). (c) A discrete area of acantholysis resulting in formation of an intraepidermal vesicle (vesicular variant) (×4). (d) Close-up of a different vesicular lesion showing cohesive modules of multinucleated keratinocytes and degenerative nuclear changes reminiscent of herpesvirus infection (pseudoherpetic variant) (×40)

Figure 2: Unusual variants of Grover disease: (a) Vertical column of parakeratosis resembling cornoid lamella (arrow) in an otherwise typical case (porokeratotic variant) (×10). (b) Lentigo-like interdigitating epidermal hyperplasia with mild basal hyperpigmentation and subtle foci of suprabasal acantholysis (arrow) (lentiginous variant) (×10). (c) A discrete area of acantholysis resulting in formation of an intraepidermal vesicle (vesicular variant) (×4). (d) Close-up of a different vesicular lesion showing cohesive modules of multinucleated keratinocytes and degenerative nuclear changes reminiscent of herpesvirus infection (pseudoherpetic variant) (×40)