These may require several cuts, stitches, or even skin replacement. It’s hard to surgically remove congenital nevi, especially large and giant ones. However, they can make some people self-conscious. In most cases, congenital nevi don’t cause any physical problems and don’t require treatment. halo nevus, which is a mole with light- or white-colored skin surrounding it.garment nevus, which refers to a nevus either around the buttocks or on the entire arm or shoulder.tardive nevus, which is a nevus that appears after birth, usually before age 2, and grows slowly.satellite lesions, which are smaller moles, either surrounding the main nevus or located somewhere else on the body.speckled lentiginous nevus, which has dark spots on a flat, tan background.Medium nevi occur in about 1 in every 1,000 newborns. These are fairly common, occurring in about 1 in every 100 newborn children.Ī nevus that’s expected to grow to an adult size of 1.5 to 19.9 cm across (5/8 to 7 3/4 inches) is classified as medium. is accompanied by many smaller (satellite) neviĪ congenital nevus that measures less than 1.5 centimeters (cm) across (about 5/8 inch) is classified as small.They may classify a congenital nevus as giant if it: covers a large part of the head, legs, or arms.is not removable by a single surgical cut.is larger than the palm of the child’s hand.Giant nevi are relatively rare, occurring in roughly 1 out of 20,000 live births.Ī doctor might classify a congenital nevus as large if it: However, because the head grows somewhat less than the rest of the body, a nevus that measures 3 inches across on the head of a newborn is also classified as giant. On a newborn child, this means that a nevus that measures 2 inches across is considered a giant one. A nevus that will grow to an adult size of 8 inches or more across is considered a giant nevus. ![]() ![]() There are several types of congenital nevi, depending on their size and appearance.
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