A 34-year-old woman develops symmetric brown macules on the cheeks and upper lip after starting combined oral contraceptives. The lesions are flat,

Question

A 34-year-old woman develops symmetric brown macules on the cheeks and upper lip after starting combined oral contraceptives. The lesions are flat, nonpruritic, and worsen during summer. There is no scale or systemic symptom. Which of the following is the most likely diagnosis?

Accepted Answer

Melasma

Answer

Discoid lupus erythematosus

Answer

Acanthosis nigricans

Answer

Vitiligo

Answer

Tinea versicolor

Melasma — USMLE Step 3 MCQ

A 34-year-old woman develops symmetric brown macules on the cheeks and upper lip after starting combined oral contraceptives. The lesions are flat, nonpruritic, and worsen during summer. There is no scale or systemic symptom. Which of the following is the most likely diagnosis?