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August 1986

Disseminated Superficial Actinic Porokeratosis: Coexistence With Other Porokeratotic Variants

Author Affiliations

From St John's Hospital for Diseases of the Skin, London (Dr Dover); the Dermatology Department, The London Hospital (Dr Phillips); the Dermatology Department, Leicester (England) Royal Infirmary (Dr Burns); and The Hospital for Sick Children, Toronto (Dr Krafchik). Dr Dover is presently with the Department of Dermatology, Beth Israel Hospital, Boston.

Arch Dermatol. 1986;122(8):887-889. doi:10.1001/archderm.1986.01660200059015

• The coexistence of disseminated superficial actinic porokeratosis (DSAP) with other variants of porokeratosis is rare. We report three such cases: DSAP with porokeratosis of Mibelli; DSAP with linear porokeratosis; and DSAP occurring in the mother of a girl with linear porokeratosis. Although different areas of skin and different family members usually express the same morphological variant, we suggest that the simultaneous expression of two closely linked gene loci could explain the coexistence of different porokeratotic variants.

(Arch Dermatol 1986;122:887-889)

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