This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Congenital malformations, Subject name: Gynaecology & Obstetrics
What will be the investigation of choice for a bicornuate uterus 
Select and explain. 
A. USG, B. CT scan, C. Hystero-salpingography, D. Combined hysterolaparoscopy
D: Combined hysterolaparoscopy
Answer: D: Combined hysterolaparoscopy 
Explanation: Combined hysteroscopy and laproscopy help to differentiate between bicornuate uterus and septate uterus Diagnosis of bicornuate uterus is oured if the fundal midpoint indentation is >5mm above the interostial line. Ref: Shaw Gynecology 17 e pg 72.