Seborrheic keratosis (seb-o-REE-ik ker-uh-TOE-sis) is one of the most common noncancerous skin growths in older adults.
A seborrheic keratosis usually appears as a brown, black or light tan growth on the face, chest, shoulders or back. The growth has a waxy, scaly, slightly elevated appearance. Occasionally, it appears singly, but multiple growths are more common. Seborrheic keratoses don't become cancerous, but they can look like skin cancer.
Seborrheic keratoses are normally painless and require no treatment. You may decide, however, to have them removed if they become irritated by clothing or for cosmetic reasons.
Jan. 28, 2014
- Goldsmith LA, et al., eds. Fitzpatrick's Dermatology in General Medicine. 8th ed. New York, N.Y.: The McGraw-Hill Companies; 2012. http://www.accessmedicine.com/resourceTOC.aspx?resourceID=740. Accessed July 3, 2013.
- Habif TP. Clinical Dermatology: A Color Guide to Diagnosis and Therapy. 5th ed. Edinburgh, U.K.; New York, N.Y.: Mosby Elsevier; 2010. http://www.mdconsult.com/books/about.do?about=true&eid=4-u1.0-B978-0-7234-3541-9..X0001-6--TOP&isbn=978-0-7234-3541-9&uniqId=230100505-57. Accessed July 3, 2013.
- Seborrheic keratosis. American Academy of Dermatology. http://www.aad.org/dermatology-a-to-z/diseases-and-treatments/q---t/sebhorrheic-keratoses. Accessed July 3, 2013.
- AskMayoExpert. Seborrheic keratosis. Rochester, Minn.: Mayo Foundation for Medical Education and Research; 2013.
- Goldstein BG, et al. Overview of benign lesions of the skin. http://www.uptodate.com/home. Accessed July 3, 2013.
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