4 March 2014, by KANITAKIS J.


The term “Porokeratosis” (PK) encompasses a group of relatively uncommon dermatoses that may be acquired or genetic and that are characterised by a keratinisation defect of the epidermis of unknown origin. Clinically, the lesions present as annular or linear, more or less atrophic plaques with a well-defined, keratotic, ridge-like border; histologically, all PK forms are characterized by the presence of a “cornoid lamella”, a vertical stack of parakeratotic corneocytes embedded within the orthokeratotic stratum corneum, overlying an epidermal invagination that displays loss of the granular layer [1].

× N.B. : This limited content is for the general public. If you are a health professional, click here to register for free and gain access to a dedicated deeper content.
If you already have an account, log in!

Follow us


  Health professionals

The other websites of the foundation