Is neurofibromatosis a cancer?

NO. Nf is a genetic disosrder that can predispose patient to tumors, mostly benign such as neurofibromas tumors of skin and other tissues .Plexiform neurofibromas are deeper tumors that affect nerves. These rarely become malignant. Other tumors can involve optic nerve (gliomas) , acoustic nerves (neuromas), meningiomas, astrocytoma brain, intestinal tumors (carcinoids)and adrenal pheochromocytomas.
No. Neurofibromatosis is not cancer, but people with this inherited disorder (there are two types) can be at a higher risk for certain types of tumors. These patients are followed closely to watch for tumor development.