What is behind this newborn's nodular skin?

Wilbur is a two-week-old who has been brought in for review of a rash on his back.

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 Kate Kelso is a GP and medical editor at Australian Doctor.

  1. BMJ Case Rep 2019; 12:e231458
  2. Hunt R. Subcutaneous fat