<prompt> A girl has primary amenorrhea with normal ovaries, absent internal genitalia but normal external genitalia. Most probable diagnosis :Mayer-Rokitansky-Kuster-Hauser syndromeTurners syndromeNoonansAndrogen insensitivity syndrome  <response>: Mullerian agenesis, also called Mayer-Rokitansky-Kuster-Hauser syndrome or MRKH, named after August Franz Josef Karl Mayer, Carl Freiherr von Rokitansky, Hermann Kuster 1879-1964, and Georges Andre Hauser 1921-2009, is a congenital malformation characterized by a failure of the Mullerian duct to develop, resulting in a missing uterus and variable degrees of vaginal hypoplasia of its upper poion. Mullerian agenesis including absence of the uterus, cervix andor vagina is the etiology in 15 of cases of primary amenorrhoea. Because most of the vagina does not develop from the Mullerian duct, instead developing from the urogenital sinus along with the bladder and urethra, it is present even when the Mullerian duct is completely absent. Ovaries are normal Hormonal levels are normal 