Assertion: iris melanoma | /r/HasProperty | distinct
Facets:
value: in their etiology
type: OTHER
value: in prognosis
type: OTHER
Source sentences:
text: True iris melanomas, originating from within the iris as opposed to originating elsewhere and invading the iris, are distinct in their etiology and prognosis, such that the other tumors are often referred to collectively as posterior uveal melanomas.