Here is another q I would like to hear your thoughts.
A 15 yr old girl is brought in for evaluation of amenorrhea. She has never menstruated, but her mother had menarche at age 14. The pt has no other medical problems or allergies. She takes no medications and does not use tobacco, alcohol, or drugs. The pt plays the violin for her high school orchestra and is the captain of her junior varsity tennis team. She is not sexually active. Her height is 175 cn, weight is 64 kg, and BMI 21.1 kg/m2. Examination shows fully developed secondary sexual characteristics. Pelvic ultrasound shows a shortened vaginal canal with a rudimentary uterus. Which of the following is the most likely diagnosis in this pt?
A. 21-hydroxylase deficiency
B. 47, XXX karyotype
C. Androgen insensitivity syndrome
D. Kallmann syndrome
E. Klinefelter syndrome
F. Turner syndrome
G. Vaginal agenesis