You are seeing a 68-year-old male in a primary care setting who has presented with multiple lesions on his face that he is concerned about. He informs you that a few weeks ago he noticed a single plaque on his face however, this plaque has progressed to develop on the nose and forehead. On examination you note that the patient is fair-skinned. The lesions are flat papules which are yellow and tender on palpation. What is the most likely diagnosis?