Disseminated Superficial Actinic Porokeratosis: Case report

Background: Disseminated superficial actinic porokeratosis is a rare disorder that presents abnormal clonal keratinization of unknown etiology. Frequently associated with UV radiation, genetic factors, and immunosuppression. It manifests clinically as solitary or multiple annular plaques surrounded by a hyperkeratotic border. Various clinical forms have been described, including disseminated superficial actinic porokeratosis, the most common subtype and represented in the following clinical case. Clinical case: A case of a 62-year-old male is presented who presents with dermatosis characterized by annular erythematosquamous plaques spread to the hands, chest and upper and lower extremities and chest with collarette scales of chronic evolution. A clinical diagnosis is made, confirmed by classic histopathology and dermoscopic findings. Conclusions. Disseminated superficial actinic porokeratosis is rare, difficult to diagnose and similar to multiple pathologies; This is why it is important to recognize them clinically and achieve timely treatment of potential malignancy that they present.