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Vincent Descamps, MD, PhD

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My group's study¹ demonstrates that the number of melanocytic nevi larger than 2 mm in diameter is higher in children aged between 8 and 9 years who were exposed to neonatal phototherapy than in those who were not exposed. In a multivariate analysis, we have studied the respective roles of both sun exposure and neonatal phototherapy (Table).

Table appears in full text version. Table. Statistical Multivariate Analysis of Nevus Risk Factor

As summarized in the Table, sun exposure is the major factor for nevi smaller than 2 mm. In addition, the data in the Table support the fact that neonatal phototherapy is the major risk factor for nevi larger than 2 mm in diameter.

It can be postulated that sun exposure is the major risk factor for the most recent melanocytic nevi (< 2 mm). Nevi larger than 5 mm might represent congenital nevi for which the genetic . . . [Full Text of this Article]

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Effect of Neonatal Phototherapy on Melanocytic Nevus Count in Children
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