Catalog

Disseminated superficial porokeratosis

No MMS code

Link to WHO Definition

Disseminated superficial porokeratosis – http://id.who.int/icd/entity/45788231

A condition characterised by the development of multiple small pink or flesh-coloured macules or thin plaques, each with a well-defined fine circular rim of parakeratotic keratinocytes (cornoid lamella). It most commonly appears in adult life as a result of chronic sun exposure (disseminated superficial actinic porokeratosis) but may be seen in patients who are immunosuppressed as a result of therapy (e.g. organ transplant recipients) or disease (e.g. haematological malignancy, HIV infection). It is thought to be due to clonal proliferation of abnormal keratinocytes [Dermatology TAG].