Bevin Bhoyrul1, Geoffrey Brent2, Izzat Abdul-Kadir3, Jasmina Mikeljevic4. 1. Department of Dermatology, York Hospital, York, UK; bevin.bhoyrul@nhs.net. 2. Department of Dermatology, Chapel Allerton Hospital, Leeds, UK. 3. Department of Histopathology, York Hospital, York, UK. 4. Department of Dermatology, York Hospital, York, UK.