Linear pustular psoriasis (LPP) and inflamamatory linear verrucous epidermal nevus (ILVEN) possess overlapping clinical and histopathological characteristics, which emphasizes the importance of the attempt to distinguish between these two pathologies, based on clinical and ancillary laboratory data. Here we report the case of a 24-year-old woman, who presented with erythematous-desquamative, pruritic lesions, with a linear unilateral distribution (left side of the body). Clinical examination and histopathological studies suggested the diagnosis of linear pustular psoriasis, with one year of evolution, and resistant to steroid therapy.
Immunohistochemistry; Nevus; Psoriasis
