Background: Giant congenital melanocytic nevus (GCMN) is characterized by its large size and potential for transformation into melanoma. It can be associated with other neural cristopathies, including neurofibroma, however, it has not previously been described with a congenital neurofibroma.
Case report: A newborn girl presented with a large congenital neurofibroma arising in a bathing trunk type of giant congenital melanocytic nevus.
Conclusion: Congenital neurofibromas can be associated with (or a component of) a GCMN.
Keywords: Giant congenital melanocytic nevus; congenital neurofibroma; neural cristopathy.