Yoyo reflux: (A) Duplication of ureter, (B) Polycystic Kidney, (C) Mellutary sponge Kidney, (D) Pseudo kidney
Answer is A. Answer- A. Duplication of ureterReflux of the urine from one limb of the collecting system to the other limb, rather than down towards the bladder is called yo-yo reflux (saddle reflux)Cause : Duplication of ureters, paial duplication ofureters, duplicate renal pelvis