Porokeratosis of Mibelli in an HIV-positive patient*
نویسندگان
چکیده
Porokeratosis represents a group of disorders of epidermal keratinization that are characterized by one or more annular plaques surrounded by a histologically distinctive hyperkeratotic ridge-like border called the cornoid lamella. Many studies showed that organ transplantation and immunosuppression were associated in a significant number of cases. Furthermore, an association with squamous cell carcinoma and basal cell carcinoma has been noted in all variants of porokeratosis. The rarity of this disorder and its atypical clinical presentation - a single lesion on the thumb of an HIV-positive male patient - motivated this report.
منابع مشابه
Occurrence of Porokeratosis of Mibelli on an old scar due to cutaneous Leishmaniasis
Porokeratosis of Mibelli is a keratinization disorder due to cellular clones that show different degress of dysplasia. Sometimes, these lesions develop on the previously traumatized or burnt skin. Herein, a 24 – year- old female patient is presented with three facial skin lesions on her right cheek on a previous old scar due to cutaneous leishmaniasis is presented. The larger lesion was an eryt...
متن کاملCoexistence of Disseminated Superficial Actinic Porokeratosis and Ptychotropica Porokeratosis
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 ...
متن کاملEvaluation of Four Patients with Porokeratosis of Mibelli
We describe the clinical and pathologic observation of four patients with Porokeratosis of Mibelli. Allof them were women. They had four different forms of disease: Plaque type, functate form, Linear form and superficial disseminated form. In histologic features we observed a new change in basement membrane of epidermis in two patients. This change composed of Liquefaction degeneration of basal...
متن کاملCoexistence of Disseminated Superficial Actinic Porokeratosis and Ptychotropica Porokeratosis
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...
متن کاملGiant porokeratosis of Mibelli with squamous cell carcinoma.
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...
متن کامل