What are dysplastic nevi?
A nevus is a mole. Almost all moles are normal. Atypical, or dysplastic nevi, are unusual moles that are generally larger than normal moles (bigger than the width of a pencil eraser) and are either flat or have a flat part. They have irregular borders and often have varying shades of color, particularly shades of brown. Most often, dysplastic nevi appear on the back, but may also occur on the scalp, breasts and buttocks. The presence of atypical nevi may mark a greater risk of malignant melanoma developing on apparently normal skin.
