POROKERATOTIC ECCRINE OSTIAL AND DERMAL DUCT NEVUS WITH DERMATOMAL TRUNK INVOLVEMENT - LITERATURE-REVIEW AND REPORT ON THE EFFICACY OF LASER TREATMENT

Porokeratotic eccrine ostial and dermal duct naevus (PEODDN) is a rare , benign hamartomatous malformation involving the eccrine sweat duct. The existence of filiform keratinous plugs that represent cornoid lame llae overlying dilated infundibula of eccrine ducts is a distinctive f eature and the presence of associated abnormal dermal ducts is frequen t. We report a patient with PEODDN who exhibited lesions on the left s ide of her chest, Cases of PEODDN reported in the literature are revie wed. Our experience in treating this patient with ultrapulsed carbon d ioxide laser is also presented.