A verruca seborrhoica (fat wart, old age wart, wisdom wart …) is a completely benign wart-like area that develops in adulthood and often appears on the trunk or face. It can be colored from light to dark brown. Read more about age warts.
Aged warts are benign types of skin that are very common, especially in the elderly (over 50 years old). They increase with age. By the age of 30 you usually have a few. How the older you get, the more appear. Hence the not so flattering name of age wart (verruca senilis).
Another name that is commonly used is verruca seborrhoica (fatty wart). The English term is seborrheic Keratosis or seborrheic wart).