Quiz: Natty nails

A 10-year-old girl presents with a two-year history of dystrophic nails affecting 18/20 of her toenails and fingernails.

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Authors: Sarah Hanna, medical student, UNSW; Dr Minhee Kim, dermatology registrar, St George Hospital, Sydney; Professor Dedee Murrell, head, department of dermatology, St George Hospital, UNSW.