Division of Dermatology, National University Hospital, Singapore; Correspondence to: Lester Juay, MBBS (Hons), MRCP, MMed Int Med, National University Hospital, 5 Lower Kent Ridge Road, Singapore 119074.
Ellie Choi, MBBS, MRCP, MMed Int Med
Division of Dermatology, National University Hospital, Singapore
Justin Wong, MBBS, MRCPath, FRCPath
Department of Pathology, National University Hospital, Singapore
Nisha Suyien Chandran, MRCP, MMed, MBBS
Division of Dermatology, National University Hospital, Singapore