Neurofibromatosis (NF) is a genetic abnormality that affects the cell growth of neural tissue, leading to tumor growths that impact the skin, nervous system, eyes and other organs. NF is divided into two primary subgroups: neurofibromatosis type 1 (NF1), also known as von Recklinghausen or peripheral neurofibromatosis; and neurofibromatosis type 2 (NF2), also known as bilateral acoustic neurofibromatosis and central neurofibromatosis.