Question: Can you identify this condition?

An 81-year-old woman presents with erythema and erosion at the right commissure of the mouth.

The lesion is tender and the patient cannot recall any recent trauma to the area. The patient is currently taking no medications, and her medical history is unremarkable. She wears dentures and smokes half a pack of cigarettes each day.

The most likely diagnosis is

1. Herpes simplex virus (herpes labialis)

2. Erosive lichen planus

3. Angular cheilitis

4. Orofacial granulomatosis

5. Actinic cheilitis

Answer on page 1022

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