We report here a rare case of porokeratosis in which two different clinical types of porokeratosis (linear porokeratosis and disseminated superficial actinic porokeratosis) coexisted. A 7-year-old girl developed a centrifugal lesion on her left abdomen at the age of 2, disseminated superficial actinic porokeratosis on her face at the age of 3 after ultraviolet exposure, and linear porokeratosis...

Sir, Six main clinical forms of porokeratosis are recognized: classical porokeratosis or porokeratosis of Mibelli, punctate palmoplantar porokeratosis, linear porokeratosis (LP), disseminated superficial porokeratosis, disseminated superficial actinic porokeratosis (DSAP), and disseminated palmoplantar porokeratosis (1). The coexistence of more than one form in a single individual is infrequent...

Porokeratosis (PK) is an uncommon disorder of epidermal keratinization characterized by annular plaques with an atrophic center surrounded by a raised, keratotic wall, with unknown aetiology and an unpredictable outcome. It has several clinical forms including porokeratosis of Mibelli, giant porokeratosis, linear porokeratosis, disseminated superficial actinic porokeratosis, palmoplantar ...

DSAP: Disseminated superficial actinic porokeratosis DSP: Disseminated superficial porokeratosis INTRODUCTION The porokeratoses are a group of disorders of abnormal epidermal keratinization resulting in the characteristic histologic feature of the cornoid lamella. Several clinical variants of porokeratosis exist, which are unified by this common histologic feature but differ in morphology, dist...

An 81-year-old Finnish female had a 10-month history of a very pruritic eruption. In the clinical examination porokeratosis was suspected and histologically verified with the typical cornoid lamellae. The eruption involved also the unexposed areas of the skin. The patient had always avoided sunshine because it made her feel uncomfortable. The patient's sister, too, had a solitary lesion of poro...

Although lichen planus and vitiligo are common skin disorders, their association with two other uncommon diseases, i.e. lichen sclerosus et atrophicus and disseminated superficial actinic porokeratosis, seems to be a very rare occurrence. We report herein a 70-year-old man who developed all of these four skin disorders simultaneously.

Porokeratosis (PK) is an uncommon disorder of epidermal keratinization characterized by annular plaques with an atrophic center surrounded by a raised, keratotic wall, with unknown aetiology and an unpredictable outcome. It has several clinical forms including porokeratosis of Mibelli, giant porokeratosis, linear porokeratosis, disseminated superficial actinic porokeratosis, palmoplantar poroke...

Porokeratosis is a rare epidermal disorder characterized by annular or linear hyperkeratotic plaques with slightly raised thread-like borders, and in most cases, atrophic centers. Disseminated superficial porokeratosis and disseminated superficial actinic porokeratosis (DSAP), which primarily involve sun-exposed areas, are common types of porokeratoses. Histologically, a column of parakeratotic...

© 2015 The Authors. doi: 10.2340/00015555-1908 Journal Compilation © 2015 Acta Dermato-Venereologica. ISSN 0001-5555 Porokeratosis (PK) is a disorder of clonal hyperproliferation of keratinocytes. It has several clinical manifestations characterised by variably sized papules or plaques with a fine peripheral keratotic rim and central atrophy accompanied by a histological finding of cornoid lame...