Assertion: precancerous condition | /r/HasProperty | idiopathic
Facets:
value: in many cases
type: TEMPORAL
value: in nature
type: LOCATION
Source sentences:
text: However, in many cases, precancerous conditions or lesions can be sporadic and idiopathic in nature, meaning that they are not associated with a hereditary genetic predisposition to the particular cancer, nor with a direct causative agent or other identifiable cause.