Circumscribed palmar hypokeratosis.
A 66-year-old woman presented with a 40-year history of a slowly enlarging erythematous patch on the left thenar eminence. Histopathology showed a sharp 'step' between the uninvolved and involved skin. Epidermal dysplasia and a cornoid lamella were not seen. These are the typical features of circumscribed palmar hypokeratosis.
Jarrett
Paul
P
The Skin Centre, Tauranga, New Zealand. info@skincentre.com
Sutton
Timothy
T
D000368:Aged; D003937:Diagnosis, Differential; D005260:Female; D006229:Hand Dermatoses / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D007642:Keratosis / Q000175:diagnosis* / Q000473:pathology