Porokeratosis ptychotropica is a rare variant of porokeratosis that is classically located on the gluteal and perianal regions, seldom extending to the genitalia. The authors report an atypical presentation of porokeratosis ptychotropica and discuss the use of dermoscopy in evaluating this dermatosis. Dermoscopic findings, although not specific to this variant of porokeratosis, are helpful in t...

Porokeratosis is a specific disorder of keratinization that has five major clinical types and shows a characteristic cornoid lamella on histopathology. Giant porokeratosis is considered to be a morphological variant of porokeratosis of mibelli. Malignant degeneration has been described in all forms of porokeratosis but highest risk is associated with linear and giant porokeratosis . We report a...

Porokeratosis is characterized clinically by annular plaques with a distinct peripheral keratotic ridge and histologically by the cornoid lamella. Porokeratosis with follicular involvement is rarely reported. To provide the basis of that follicular porokeratosis is a clinical variant or not. Biopsy was taken from three patients who were diagnosed porokeratosis. Routine stain was made and review...

The present study was performed in order to define the clinical manifestations of porokeratosis, with particular emphasis on genital porokeratosis. A total of 55 cases of porokeratosis were retrospectively reviewed between 2000 and 2007 from Huashan Hospital (Shanghai, China). Out of 55 cases, there were 22 cases of porokeratosis of Mibelli, 17 cases of disseminated superficial actinic porokera...

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...

Genital porokeratosis is a rare form of porokeratosis which can occur in two ways : in isolated form or as a part of disseminated porokeratosis. The former one is much rarer and less than 50 such cases of isolated involvement of genitalia in porokeratosis has been reported so far. Being a inherited disorder of keratinization, usual mode of heritance is autosomal dominant. The aim of present rep...

Porokeratosis refers to a group of hereditary or acquired disorders of epidermal keratinization and is characterized histologically by the presence of a cornoid lamella. The clinical variant referred to as disseminated superficial porokeratosis has been described in the literature in association with immunosuppressive conditions that include organ transplant, infections and immunosuppressive tr...