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Urinary and Genital Disorders (Children)

Left kidney hydronephrosis



My 8 year old son was treated for a UTI, was sent for a ultrasound. The ultrasound showed left kidney dilated. VCUG was done showed no reflux all blood work also normal. Doc now set up a Renal scan to be done to check for obstruction. What are the types of obstructions that may be found? how treated? and is it common to have dilation with out reflux or obstruction? will it correct on its own?


Kidneys can be dilated due to an obstruction, due to reflux, or simply be dilated without obstruction or reflux. Obstruction can be very hard to truly diagnose and a renal scan can give some information as to if there is some element of blockage. If there is a blockage, it usually means the tube that brings urine to the bladder is kinked and surgery is typically needed to correct the problem.

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Response by:

Rama   Jayanthi, MD Rama Jayanthi, MD
Clinical Assistant Professor of Urology
College of Medicine
The Ohio State University