[5] There is no cure at this time, and in its more advanced forms, it is considered a terminal diagnosis with a life expectancy of 35–45 years; treatments are surgery and palliative care, although some chemotherapy has been tried with limited success.[3] This gene is also mutant in familial adenomatous polyposis (FAP), a more common disease that also predisposes to colon cancer.Gardner syndrome is set apart as a subtype because, in addition to colonic polyps, there are also extra-colonic growths (both malignant and benign).Gardner syndrome is also associated with familial adenomatous polyposis and may manifest as aggressive fibromatosis (desmoid tumors) of the retroperitoneum.Treatments for desmoid tumors may include surgery, NSAIDS, anti-estrogen medications, radiation therapy and chemotherapy.