DERMOSCOPIC DIFFERENTIATION OF TWO CLOSE MIMICS- PALMOPLANTAR PSORIASIS AND PALMOPLANTAR ECZEMA: A COMPARATIVE OBSERVATIONAL STUDY.

Abstract

Psoriasis is a chronic papulosquamous disorder presenting with erythematous, pruritic plaques, silvery-white scales and ssures. Eczema is characterized by hyperkeratotic plaques associated with scaling, occasional oozing and pruritus. Palmoplantar psoriasis and palmoplantar eczema have close resemblance in their clinical presentation and hence, pose a difculty in diagnosis. Dermoscopy of palmoplantar psoriasis predominantly shows light pink-red background, diffuse white scales, regularly distributed dotted vessels while eczema predominantly shows yellow scales, linear and dotted vessels on a dull red background along with brown dots and globules. In this study, we found that both palmoplantar psoriasis and palmoplantar eczema have distinct dermoscopic ndings and thus, dermoscopy is an effective and noninvasive way to differentiate the two conditions