CEA test: Carcinoembryonic antigen test is to detect response to therapy in cancer patients, especially colon cancer, with normal range of less than 2.5 (less than 5 in heavy smokers). Note that a positive test may not always be indicative of cancer.
Os Trigonum Syndrome. An Os Trigonum is a small, extra bone found at the back of the ankle in approximately 5-10% of people. Often it goes completely unnoticed, not causing any problems.
What symptoms and issues are associated with the os trigonum? Os trigonum symptoms are far more common in dangers, swimmers, high jumpers and other athletes who repeatedly point their toes and place repetitive pressure on the toes that transfers force to the ankle area. When symptoms are present, they can include: