Final answer:
The most likely diagnosis given the description of the lesions as "pasted" on and soft is seborrheic keratoses, which are benign, painless growths typically found in older adults.
Step-by-step explanation:
Given the description of the lesions as "pasted" on the skin and soft to the touch, the most likely diagnosis is seborrheic keratoses. This condition typically presents with benign growths on the skin that appear to be stuck on and can have a waxy or "pasted on" appearance. Seborrheic keratoses are common in older adults and are usually painless. They can vary in color and can appear anywhere on the body, but they are commonly found on the back, shoulders, and chest.
Other options such as verrucous, which refers to wart-like growths often caused by human papillomavirus (HPV), and urticaria, commonly known as hives, characterized by raised, itchy welts, seem less likely in this case. Xanthelasma, which are yellowish deposits of cholesterol under the skin, typically occur around the eyelids and do not match the provided description.
It is important for the healthcare provider to conduct a thorough examination to rule out other conditions, as many skin lesions can share similar appearances. When in doubt, a biopsy might be performed to confirm the diagnosis of seborrheic keratosis.