Fox says ovarian as does the Dallas Morning News. Maybe CBS forged her not-yet-performed autopsy report?
It's possible the cancer had spread to her brain and that was the one that killed her.
Don't know, just saying it is not unusual for a secondary site to be the one that ends a life. Actually, she probably had many sites where the cancer had spread.
I'm just at post #23 and haven't read any farther yet, but the ovarian cancer she started with had metasticized to liver and possibly brain - so all descriptions may be correct - but it was ovarian to begin with.