53-year-old woman presents with a red plaque on her calf

The patient is a 53-year-old woman who presents with a red plaque on her calf. She reports that she first noticed it two months ago.

You find that the plaque is non-pruritic and asymptomatic.
The patient, who is in good general health, admits no new medications and says that none of her family members have a rash or skin lesion of any kind.

View the images and consider what your next steps would be.