A seborrheic keratosis (also known as "Seborrheic verruca," and "Senile wart") is a noncancerous benign skin growth that originates in keratinocytes. Like liver spots, seborrheic keratoses are seen more often as people age. In fact they are sometimes humorously referred to as the "barnacles of old age". http://www. medterms. com/script/main/art. asp?articlekey=11538 They appear in various colors, from light tan to black. They are round or oval, feel flat or slightly elevated (like the scab from a healing wound), and range in size from very small to more than 2...