Case #1

A 67-year-old man presents to the office for a yearly skin check. The patient has a history of basal cell carcinoma, which was treated with Mohs surgery 2 years ago without incident. Because of his history of skin cancer, the patient is careful to routinely perform a skin check. He recently noticed several hard scaly spots on his forehead and scalp that he would like evaluated. He had similar lesions in the past that were treated at his last visit with liquid nitrogen without an issue. On physical examination, the patient has several papules with an erythematous base and white gritty scale of varying thickness scattered on the scalp, forehead, nose, forearms, and dorsal hands.

Can you diagnose the condition in Case 1?

  1. Squamous cell carcinoma
  2. Actinic keratosis
  3. Melanoma
  4. Basal cell carcinoma

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