A mobile subcutaneous nodule near the eyebrow

A 64-year-old woman presents with a 6-month history of a slowly enlarging bump near her left eyebrow. The patient says it appeared suddenly and became a nuisance, as well as cosmetically unacceptable as it enlarged. She denies any pain, tenderness, or oozing, and denies any other similar lesions elsewhere. Her pertinent dermatologic medical and family history are unremarkable. Physical examination ...