Neurofibromatosis Type 1 (NF1), also referred to as von Recklinghausen disease, is a rare genetic disorder primarily impacting the nervous system. Among the six identified types of NF, NF1 and NF2 are the most common. In the United States, approximately 1 in 3,500 individuals have NF1, while 1 in 2,500 people have NF2.