Seborrheic Keratosis:
Seborrheic keratosis is a noncancerous scaly growth on the skin. It is very common in those over the age of 40. Some transplant recipients appear to develop many of these growths. They can have a variety of appearances ranging in color from white to skin colored to brown to black. They all generally have a waxy scale (appearance that candle wax has been dropped on the skin.) Many appear as if they have been stuck onto the skin like a sticker or piece of bubble gum. They will occasionally peel off the skin and then regrow. They can become irritated (itch or feel tender). They do not require treatment because they are noncancerous and noninfectious so will not spread if left untreated. If they are tender, irritated, or bothersome cosmetically, they can be removed with liquid nitrogen treatment or scraped off with a sharp instrument.

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International Transplant Skin Cancer Collaborative
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