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Published on: May 16, 2025
ILVEN-like persistent psoriasiform dermatitis confined to a congenital Becker nevus
Naheed Abbasi1, William L Fangman, Karla S Rosenman
1Department of Dermatology, New York University School of Medicine, New York, New York 10016, USA.
Abstract:
A 10-year-old boy presented with a 5-year history of an intractably pruritic, recalcitrant psoriasiform plaque in a broad vertical band on the left buttock, with histologic as well as clinical features suggestive of an inflammatory linear verrucous epidermal nevus. This lesion was completely superimposed upon a congenital Becker nevus. We postulate that the restricted distribution and persistence of the psoriasiform plaque reflected an inflammatory response limited to the aberrant clone of cells composing the Becker nevus, a manifestation of cutaneous mosaicism that could be characterized as an "inflammatory Becker nevus."
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