Can you shed some light on these nail changes?

Ross is an active 75-year-old retiree who complains that most of his toenails and his left thumb nail have become discoloured and loose in the past few weeks.

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!


 

Emeritus Professor Max Kamien is a senior honorary research fellow, University of WA.

References:
  1. Cutis 2017; Jan.

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