What's causing the plaque on this pinna?

Sashi, a 10-year-old girl, attends complaining of a rash on her right earlobe for the past month.

Test your clinical know-how by taking the quiz below. If you select the wrong answer, have another go — you can try as many times as you like!


Dr Paul Muthiah is a GP on the Central Coast, NSW, and medical co-editor at Australian Doctor.

  1. Patient; last updated 17 Aug. 2015