actinic porokeratosis

ac·tin·ic po·ro·ker·a·to·sis

a lesion that occurs on exposed areas of extremities primarily; bears a resemblance to actinic keratosis, but the histologic features are those of porokeratosis.
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Clinical types include porokeratosis of Mibelli (PM), disseminated superficial PK, disseminated superficial actinic porokeratosis (DSAP), facial PK, and ptychotropica porokeratosis (PP).
Dermoscopy of disseminated superficial actinic porokeratosis.
Several clinical variants have been identified, including porokeratosis of Mibelli (PM), disseminated superficial porokeratosis of immunosuppression and childhood, disseminated superficial actinic porokeratosis (DSAP), linear and punctate forms, porokeratosis palmaris et plantaris disseminate, giant porokeratosis, and porokeratosis ptychotropica (1).
These include classic porokeratosis of Mibelli, Disseminated superficial actinic porokeratosis, punctate porokeratosis, porokeratosis palmaris et plantaris disseminate and linear Porokeratosis.
Natural or artificial ultraviolet radiation, electron beam therapy, and extensive radiation therapy are well established trigger factors for disseminated superficial actinic Porokeratosis and porokeratosis of Mibelli.
Two closely linked variations in actin cytoskeleton pathway in a Chinese pedigree with disseminated superfi cial actinic porokeratosis.
A Chinese research team, led by Anhui Medical University and BGI, has found the strong genetic evidences of mevalonate kinase gene (MVK) mutations link to disseminated superficial actinic porokeratosis (DSAP).
Disseminated superficial actinic porokeratosis (DSAP) is characterized by small, atrophic patches with distinctive keratin rims that occur on sun-exposed areas of the extremities, shoulders, and back.
There are six different types of porokeratosis: Porokeratosis of Mibelli (PM), giant porokeratosis, linear porokeratosis (LP), disseminated superficial actinic porokeratosis (DSAP), palmoplantar po-rokeratosis (PPP), and punctate porokeratosis (PP) (3).
Porokeratosis of Mibelli (PM) disseminated superficial actinic porokeratosis porokeratosis palmaris plantaris et disseminata (PPPD) linear porokeratosis punctate porokeratosis.
Herein, we report a case of rare coexistence of unilateral linear punctate porokeratosis and ipsilateral solitary actinic porokeratosis in an 18-year-old male.
We report a sporadic case of disseminated superficial actinic porokeratosis in dark-skinned male patient.