How to mark the correct cause of primary amenorrhea from question?
- First to look at whether the secondary sexual characteristics (mainly thelarche [enlargement of breast]) is present or not
- Then proceed according to the following charts
- Please note that the charts are purely for MCQ purposes only.
Other MCQs from these 2 tables:
Kallmann syndrome:
- Embryologically GnRH neurones develop in the ectodermal olfactory placode before they migrate finally to the hypothalamus
- GnRH neurones are absent due to partial or complete agenesis of olfactory bulb
- This disorder is characterized by hypogonadotropic hypogonadism, anosmia and color blindness.
Turner syndrome:
- Uterus is present but breast and ovary are absent
- Short stature due to absence of SHOX gene (which plays an important role in the growth and maturation of long bones)
- MC associated cardiac abnormality: Bicuspid aortic valve
- Associated with horseshoe kidney.
More points to differentiate between Mullerian agenesis/ Mayer-Rokitansky-Küster-Hauser (MRKH) syndrome and Androgen insensitivity syndrome (AIS)/ Testicular feminization syndrome:
