Definition of Melanoma, superficial spreading

Melanoma, superficial spreading: One of the four clinical types of malignant melanoma, the most common type in white people, which typically presents as a raised, irregular, colored area that starts in a mole-like shape and spreads across the skin.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=11639
Last Editorial Review: 3/19/2012