Disseminated Superficial Actinic Porokeratosis (DSAP)

Disseminated Superficial Actinic Porokeratosis

“…The papule then enlarges ccntrifugally over a period of months or years to form a well-delimited plaque with an atrophic central area and a fine elevated keratotic border. Rarely, as in our patient, the central area of the DSAP lesion demonstrates numerous follicular cone-shaped kera totic plugs giving an unusual clinical appearance [1). In the case we report here, there were erythematous lichenoid plaques that were erro neously considered as lichen planus even after biopsy.…”

“…A linear variant exists which also predominates on the limbs. Chernosky and Freeman [1] differ entiated the DSAP in 1963. Finally, a palmar and plantar variant has been individually described by Guss et al in 1971 [3).…”

“…Disseminated superficial actinic porokeratosis (DSAP) was first described as a clinical entity in 12 patients by Chernosky and Freeman in 1966 [1]. That this disorder belongs to the porokeratosis group is proved by the presence of the clinical and histological hallmark, i.e.…”

Treatment with an Oral Aromatic Retinoid in Linear Porokeratosis

“…It is characterized clinically by scaly atrophic plaques which are surrounded by a raised ridge having on its top a furrow filled with keratotic material [2], Several clinical forms of porokeratosis of Mibelli have been described [4,5,7,13] and, in addition, distinct variants exist like disseminated superficial actinic porokeratosis [3], porokeratosis plantaris, palmaris et disseminata [6], and linear porokeratosis [12]. The latter is of special importance in the differential diagnosis of linear dermatoses of childhood, such as linear inflammatory verrucous epidermal nevus, lichen striatus, linear lichen planus and linear psoriasis.…”

Eruptive disseminated superficial actinic porokeratosis in an immunocompetent host: Is this associated with herpes simplex virus or bacterial infection?

“…1 The etiology of different variants of porokeratosis is unknown. However, there are increasing numbers of reports of disseminated superficial actinic porokearatosis (DSAP) in connection with impaired immunocompetence.…”