A positive tTG with a negative gliadin can mean a number of things: You got a false positive tTG. (Possibly due to some other autoimmune disorder) You got a false negative gliadin. (This is actually much more likely than with the tTG test. Reported sensitivity of gliadin test is in the 65-75% range, meaning that roughly 1/4-1/3 will be false negative)
Definition of ultra. : going beyond others or beyond due limit : extreme.
Word Origin & History. ultra- prefix meaning beyond (ultraviolet) or extremely (ultramodern), from L. ultra- from ultra (adv. and prep.) beyond, on the further side, from PIE *al- beyond.. In common use from early 19c., it appears to have arisen from Fr. political designations.