Mariah Carey - Mariah Carey's Prostitute Sister Diagnosed With Cancer

Alison Carey Scott, a convicted prostitute, has seen her health seriously deteriorate in recent years after she was diagnosed with the deadly Hiv virus, and now doctors have discovered she is also suffering from cancer.

A National Enquirer reporter recently met with Carey Scott, 50, outside a hotel in Riverhead, New York, where she confirmed she was extremely ill, saying, "Not with Aids... liver cancer."

The pop superstar, who is currently in France, allegedly has no idea about Carey Scott's latest health crisis and it is likely to come as a big blow to the singer, who has been supporting her husband Nick Cannon through his own health battle after he was diagnosed with a rare form of autoimmune disease lupus in January (12).

A source tells the tabloid, "Mariah's been to hell and back with Nick's health problems... Now Alison's tragedy will be a double whammy for her."

The Hero hitmaker fell out with Carey Scott early on in her career, but she has previously supported her older sister through her drug addiction and even paid for her to undergo treatment in rehab.