Farrah Fawcett was the subject of an NBC documentary about battling cancer.
Fawcett was diagnosed with anal cancer in 2006 ; the 2009 NBC documentary Farrah 's Story chronicled her battle with the disease.
Anal cancer is a cancer -LRB- malignant tumor -RRB- which arises from the anus , the distal opening of the gastrointestinal tract.
