What causes Naevus?
What causes Naevus? Congenital nevi are thought to be caused by a genetic mutation, called a sporadic mutation, which develops randomly as a baby grows in the womb. The condition is not inherited. Is a nevus benign or malignant? Melanocytic nevi are benign neoplasms or hamartomas composed of melanocytes, the pigment-producing cells that constitutively colonize the epidermis. Is a nevus a birthmark? Congenital nevus (plural nevi) is simply a medical term for a mole that you're born with. They're a very common type of birthmark. You might also hear them referred to as congenital melanocytic nevi (CMN). A congenital nevus...