Porokeratosis and immunosuppression.

The term "porokeratosis" (PK) encompasses a group of uncommon hereditary or acquired diseases of keratinization of unknown aetiology, presenting with varying clinical aspects but sharing a common histopathological aspect, characterised by the presence of the "cornoid lamella". PK was first described by Mibelli in 1893 [1]; several other clinical forms were subsequently identified. PK may appear in otherwise healthy persons but may also [...]