porkeratosis
Last reviewed 01/2018
- may be congenital or acquired
- share a histopathological feature - a 'cornoid lamella' (thin column of parakeratotic cells) evidenct clinically as fine scaling around the periphery of the lesion
- mild atrophy occurs in the centre of the lesion
- congenital lesions - reticulate pattern and may be extensive
- aquired lesions - may be solitary and broad or multiple and scattered (disseminated superficial actinic porokeratosis - sunlight is believed to have an aetiological role)
Reference:
- (1) Smith LC et al. A guide to annular eruptions. Dermatology in Practice (April 2008); 16(1).