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Dermoscopy of pitted keratolysis
How to cite this article: Srivastava P, Khunger N. Dermoscopy of pitted keratolysis. CosmoDerma 2022;2:127.
A 32-year-old gentleman presented with irritated malodourous hyperhidrotic soles with multiple small pits, diagnosed as pitted keratolysis or keratosis plantare sulcatum [Figure 1]. It is a superficial bacterial infection caused by organisms such as Corynebacterium spp., Actinomyces spp., Dermatophilus congolensis, and Kytococcus sedentarius. Dermoscopy of pitted keratolysis showed multiple clustered and scattered, crateriform pits on weight-bearing areas of the soles, having irregular shape, well-defined margins, and punched-out edges, containing brown-black dirt and debris, along with break in the dermatoglyphics [Figure 2] (DermLite DL3N, dry, contact, polarized, ×10).
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