Question: Can you identify this condition?

A 22-year-old woman presents with a 2-year history of hypopigmented, scaly macules coalescing into larger patches on her upper back. Her medical history is unremarkable and she is not taking any medications.

The most likely diagnosis is

1. Vitiligo

2. Pityriasis rosea

3. Mycosis fungoides

4. Tinea versicolor

Answer on page 1558

• Copyright© the College of Family Physicians of Canada