This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pelvic Inflammatory Disease, Subject name: Gynaecology & Obstetrics
Beaded feel of fallopian tube on hsg is seen in., 
Select and explain. 
A. TB, B. Chlamydia, C. Gonococcal infection, D. Syphillis
A: TB
Answer: A: TB 
Explanation: Ans. is 'a' i.e., TB Hvsterosalpingographic findings of tubercular salpingitisA rigid non-peristaltic pipe-like tube, called lead pipe appearanceBeading and variation in filling densityCalcification of the tubeComeal blockA jagged fluffiness of the tubal outlineVascular or lymphatic intravasation of the dyeTobacco-pouch and dilated distal end of tubes due to hydrosalpinx and pyosalpinx.o In a proven case of genital TB, Hysterosalpingography is contraindicated.