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Indian J Urol. 2010 Oct;26(4):598-9. doi: 10.4103/0970-1591.74478.

Villous adenoma of the renal pelvis and ureter.

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  • 1Departments of Urology and Pathology, Medical College, Kottayam, Elite Mission Hospital, Kerala, India.


Villous adenoma originating in the urinary tract is a rare condition. Mucus-filled kidney (muconephrosis), one of the manifestations of this condition, occurs due to intestinal type of metaplastic changes occurring in the urothelium. This condition is commonly associated with urolithiasis and/or chronic infection. Concomitant adenocarcinomatous changes in the urothelium may be present along with this and unless a careful search is made to identify this, this serious condition may be overlooked leading to an inappropriate follow-up and dire consequences. We are reporting the third case of muconephrosis due to villous adenomatous changes of the renal pelvis and ureter.


Muconephrosis; villous adenoma

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