Amenorrhea — Primary and Secondary

A 16-year-old girl presents with primary amenorrhea. On examination, she has normal secondary sexual characteristics, normal external genitalia, and a blind-ending vaginal pouch. Imaging shows absent uterus and fallopian tubes but normal ovaries. Which of the following is NOT a recognized cause of this clinical presentation?

A 28-year-old woman with a history of regular menstrual cycles presents with secondary amenorrhea for 3 months. She denies pregnancy, weight loss, or stress. Examination reveals galactorrhea. TSH is normal. What is the most appropriate next investigation?

A 16-year-old girl from Delhi presents to the gynaecology clinic with primary amenorrhea. She has normal secondary sexual characteristics (Tanner stage 5 breast and pubic hair development), normal height (162 cm), and a normal general examination. Pelvic examination reveals a blind-ending vaginal pouch with no cervix or uterus on imaging. FSH and LH levels are normal, and testosterone is within normal female range. What is the most likely diagnosis?

A 28-year-old woman with a history of regular menstrual cycles presents with secondary amenorrhea for 4 months. She denies pregnancy, weight loss, stress, or galactorrhea. Pelvic examination is normal. Urine pregnancy test is negative. What is the most appropriate next investigation?

A 16-year-old girl presents with primary amenorrhea. She has normal secondary sexual characteristics, normal height, and a normal external genitalia examination. On pelvic examination, the uterus is absent. What is the investigation of choice to confirm the diagnosis?