Management and treatment options in congenital melanocytic nevi
Congenital melanocytic nevi (CMN) are benign collections of nevus cells in the skin. They are present at birth or arise during the first weeks of life. Depending on the size, they appear in 1 in 100 to 500.000 live births.
CMN are associated with a variety of benign conditions such as benign proliferations, certain facial characteristics or subtle endocrine dysfunctions as well as malign developments such as melanoma and neurological complications. The risk for these complications strongly depends on the clinical phenotype.
Magnetic resonance imaging (MRI) has a strong value in estimating the risk of these complications. A normal MRI of the central nervous system results in a lower risk of developing melanoma and neurological complications because of the thorough follow-up and early capture.
Although there are various treatment modalities, a shift to more conservative treatment is seen. Little is known about the long term prognosis after treatment of CMN. This article tries to give a recommendation for treatment and follow-up of CMN based on the current literature.