Assertion: neurofibromatosis | /r/HasAspect | propensity
Facets:
Source sentences:
text: NF1 is a tumor-suppressor gene; neurofibromatosis 1 is thus a tumor-predisposition syndrome and neurofibromatosis 1 patients have a propensity to develop both benign and malignant tumors through acquired inactivation of the functioning NF1 allele, with a cumulative risk of malignancy at 20% by age 50.