Which benign skin eruption is characterized by a stuck-on appearance and commonly seen in the elderly?

Seborrheic keratosis is a benign skin eruption that often presents with a unique "stuck-on" appearance, making it stand out from other skin lesions. These growths are commonly seen in the elderly and can vary in color from light tan to black. They typically have a rough, wrinkled surface and may feel raised compared to the surrounding skin.

The "stuck-on" aspect is particularly notable, as it creates the impression that the growth is affixed to the skin rather than being an integral part of it. This characteristic helps differentiate seborrheic keratosis from other types of skin lesions, which may not present with the same visual and tactile features.

In contrast, actinic keratosis is typically a precancerous condition resulting from sun damage, presenting as dry, scaly patches rather than the raised, wart-like appearance of seborrheic keratosis. Basal cell carcinoma and squamous cell carcinoma are types of skin cancer, characterized by more concerning features including ulceration, bleeding, and a lack of the "stuck-on" appearance. These cancers are often associated with different risk factors and clinical ramifications compared to benign lesions like seborrheic keratosis.