Doctors say her struggle - even with the best care as a member of a prominent family - emphasises the need for more research.

Former President John F. Kennedy was one of nine siblings, so, yes, his family is huge. We're breaking down how Maria Shriver, Tatiana Schlossberg, Jack Schlossberg and countless Kennedys are related.

Shriver called Schlossberg's heartbreaking essay "a reminder to be grateful for the life you are living today, right now, this very minute."

Tatiana Schlossberg is an acclaimed journalist who has worked for 'Vanity Fair' and 'The Atlantic.' Who are her parents?

The mother of Ronan Thompson, who inspired Taylor Swift’s track “Ronan,” penned an emotional online tribute to Tatiana Schlossberg. Maya Thompson, whose blog detailed her late son’s battle with neuroblastoma and moved Swift,