This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Gynaecology & Obstetrics
Best prognosis for reversibility is seen in : 
Select and explain. 
A. lsthmo -- isthmic type, B. Isthmic -- ampullary type, C. Ampullary -- interstitial type, D. Ampullary -- timbrial type
A: lsthmo -- isthmic type
Answer: A: lsthmo -- isthmic type 
Explanation: Ans. is a i.e. isthmo -isthmic type Read the following lines "lt is impoant to select the site of tuba! ligation carefully which should ideally be done at the tubal isthmus. This is because in the event of the patient desiring a tubal recanalization procedure, the isthmoisthmic anastomosis carries the best chances of success". Site for performing tubal ligation = isthmusdeg. Postpaum laparoscopic ligation - done after 6 weeks postpaumdeg.