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.
(ËtrÉªg ÉËnÉm Éª tri) n. the branch of mathematics that deals with the relations between the sides and angles of plane or spherical triangles, and the calculations based on them. [1605â15; < New Latin trigÅnometria; see trigon, -o-, -metry] trig`oâ¢noâ¢metâ²ric (-nÉËmÉ trÉªk) trig`oâ¢noâ¢metâ²riâ¢cal, adj. trig`oâ¢noâ¢metâ²riâ¢calâ¢ly, adv.