An Adult-Onset Case of Porokeratotic Eccrine Ostial and Dermal Duct Nevus (PEODDN) in a Previously Healthy 28-Year-Old Indian Male: A Case Report.

A 28-year-old Indian male with no previous medical or dermatological history presented with mildly pruritic linear skin lesions over the right anterior chest and arm. The lesions had been gradually progressing over the course of six years. Examination revealed multiple confluent, reddish-brown papules following Blaschko's lines, along with punctate hyperkeratotic papules over the right hand, with sparing of the mucosa, scalp, and nails.