Porokeratosis is a genodermatosis characterized by abnormal epidermal keratinization with the histological feature of cornoid lamella. There are many clinical variants, but two or more of these variants rarely occur in a single patient. This variation in clinical presentation may be due to the different phenotypic expression of a common genetic abnormality or may be the consequence of abnormali...

Porokeratosis is an abnormal disease of keratinization of epidermis. It is clinically characterized by margins covered with keratin layer and it typically has an atrophied macule with a protruded, circular form. Histopathologically, it shows the findings of cornoid lamella. Risk factors for its development include organ transplantation, long-term use of corticosteroids, immunocompromised status...

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 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...

Porokeratosis is a specific keratinization disorder that manifests clinically as well-demarcated annular or linear keratotic plaques of various sizes and forms and with distinguished histology showing cornoid lamella, which is a column of closely packed parakeratotic cells extending through the stratum corneum. Nail changes secondary to porokeratotic lesions involving digits are quite uncommon ...

The case, who discribed here is a 66-year-old man with one year history of asymptomatic, keratotic papules with a linear distribution on the skin of his right palm near the wrist. On histopathological examination cornoid lamella-like parakeratotic columns above eccrine sweat ducts were observed. The acrosyringium was also dilated. He had been followed up for predominantly sensory polyneur...

Disseminated superficial porokeratosis (DSP) is a specific disorder of keratinization. Genetic studies show that DSP is an autosomal dominant trait. Clinically, the lesions show a sharply demarcated and hyperkeratotic plaque with central atrophy. The lesions appear mainly in the extremities and generally develop with bilateral symmetry. Unusual cases of DSP accompanied by severe pruritus have b...

© 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...

Epidermodysplasia verruciformis (EV) is an uncommon inherited skin condition with increased vulnerability to widespread infection by certain human papillomavirus types, resulting in extensive verruca plana-like papules coalescing to large confluent plaques. Since the AIDS epidemic starting in the 1980s, an acquired type of EV has been described in patients infected with human immunodeficiency v...