Q. A 62-year-old male presents to the dermatology clinic with concerns about multiple skin growths that have appeared on his back over the past year. He denies any history of trauma, sunburn, or significant sun exposure. He mentions that he has not noticed any itching, pain, or bleeding from these growths. Physical examination reveals multiple soft, round, wart-like fleshy growths located predominantly on his back. These growths range in size from 0.5 cm to 3 cm and vary in color from light tan to almost black. They have a characteristic "pasted-on" appearance and are clearly demarcated from the surrounding skin. The rest of the skin examination is unremarkable. Based on the clinical presentation, what is the most likely diagnosis for these skin lesions?