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What is RGP and why is it done?

Q: What is the meaning of RGP in relation to Urology? For what purpose it is done?

A:RGP stands for retrograde pyelography. It is the radiographic examination of the renal pelvis and ureter by means of contrast medium injection via a retrogradely introduced ureteric catheter. The catheter is pushed into the ureter or renal pelvis via a cystoscopic approach through the urinary bladder. The procedure is done to delineate the site of ureteric or renal pelvis pathology (tumour, stones etc.) which cannot be demonstrated otherwise.


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