Michael's wife was in a coma when she died. Ovarian cancer doesn't typically cause comas?
I’m just answering based on what I watched on the show. In the episode Prison Break-In, the Bluths are trying to agree on a cause for for their foundations’ fund-raiser. George Sr. reads all the family’s ideas and when he gets to “Ovarian cancer” he stares at Michael and says “Gee, I wonder who that was.”