Disseminated superficial actinic porokeratosis

Disseminated superficial actinic porokeratosis in a 40-year-old man is described. The diagnosis was confirmed by histopathology in which the classical cornoid lamella was seen.     

Disseminated superficial actinic porokeratosis*

A family is analysed in which disseminated superficial actinic porokeratosis (DSAP) occurred in five members. All three children of one generation are affected. Clinical, histopathological and genetic aspects of DSAP are discussed. Disseminated superficial actinic porokeratosis appears to be a clinical variant of porokeratosis of Mibelli. Since DSAP is a genodermatosis inherited as an autosomal dominant it can occur in any geographical location; however excess sunlight can definitely exacerbate the condition.     

Disseminated superficial actinic porokeratosis: a treatment review

Disseminated superficial actinic porokeratosis (DSAP) is a chronic disorder of keratinization characterized by numerous papules and plaques distributed over sun-exposed sites. Treatments are poorly standardized and several investigational therapies have demonstrated limited success in treating DSAP. To our knowledge, there have been no systematic reviews of the literature regarding the treatment of this disease. Herein, we review recent studies pertaining to the treatment of DSAP and evaluate the level of evidence for each of these therapeutic modalities.     

Disseminated superficial "actinic" porokeratosis.

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 porokeratosis. The pathomechanism of DSAP is discussed.     

Disseminated superficial actinic porokeratosis with Bowen's disease

While there have been several reports about the development of malignant neoplasms in porokeratosis of Mibelli and porokeratosis plantaris, palmaris et disseminata, only one case of squamous cell carcinoma in disseminated superficial actinic porokeratosis (DSAP) has been documented. A review is presented of the variants of porokeratosis that have so far been described in the literature as well as the differential diagnosis, genetic aspects and therapy of DSAP. The first case of DSAP with Bowen's disease is presented.     

Disseminated superficial actinic porokeratosis with hyperkeratotic lesions

A patient with disseminated superficial actinic porokeratosis (DSAP) presented with unusual exudative hyperkeratotic plaques in addition to lesions more typical of the disease. The plaques were unresponsive to various systemic antibiotics, but responded dramatically to systemic corticosteroid therapy.     

Disseminated superficial actinic porokeratosis: treatment with topical tacalcitol

Disseminated superficial actinic porokeratosis is characterized by multiple, brown, annular, keratotic lesions that develop predominantly on the extensor surfaces of the legs and arms during the third and fourth decades of life. No ideal treatment of disseminated superficial actinic porokeratosis has been found. We describe a patient with this condition whose skin lesions responded to topical tacalcitol.     

Disseminated superficial actinic porokeratosis associated with topical PUVA

Disseminated superficial actinic porokeratosis (DSAP) is associated with sun exposure and tanning bed usage and has been rarely reported in association with systemic PUVA. We report the first case of DSAP occurring after topical foot PUVA.