Seborrheic keratosis

What it means

A raised growth on the skin of older individuals. The lesion usually is initially light tan and may darken to dark brown or nearly black. The consistent feature of seborrheic keratoses is their waxy, pasted-on or stuck-on look.

Seborrheic keratosis is a benign lesion of the skin that occurs more frequently in sunlight exposed areas. The lesions can appear anywhere on the body, but most often occur on the face, chest, and back. There may be just one or clusters of dozens.

Rare diseases that can present with this2

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category

Also called: Basal cell papilloma · Seborrheic verruca