A previous report25 described massive hemorrhage and accumulation of turbid fluid in the subcapsular and perirenal tissues after ligation of the ureters in dogs. More detailed study has shown that these lesions result from extension of necrosis from the fornices of the pelvis through the renal parenchyma with consequent leakage of the retained fluid into the surrounding tissue. The necrosis may...

Upper urinary tract urothelial carcinoma (UUTUC) is rare. Current estimates claim that urothelial (transitional) cell malignancies within the renal pelvis account for less than 10% of all renal tumors. Although related, ureteric lesions are far less prevalent than their renal pelvis counterpart, with renal pelvis-to-ureter ratios exceeding 3:1. The Memorial Sloan Kettering Cancer Center reporte...

We present a rare case of a benign fibroepithelial polyp of the renal pelvis in a patient with familial adenomatous polyposis. In our paper we describe a new minimally invasive technique developed in our unit using an amplatz goose neck snare via a percutaneous nephroscope sheath in the management of the benign fibroepithelial polyp of the renal pelvis and present a current review of management...

Spontaneous perforation of the renal pelvis and extravasation of urine into the perinephric space is an extremely rare condition in childhood. It is mostly related to underlying congenital urinary tract abnormalities and caused by urolithiasis or infection in the setting of urinary obstruction. Here, we report a case of an 18-month-old female patient with rupture of the renal pelvis by an extru...

Received July 2009 Accepted January 2010 INTRODUCTION Renal pelvis is normally lined by urothelium and contains neither squamous nor intestinal epithelium. However, transitional cell epithelium undergoes phenotypic changes usually in the form of squamous metaplasia.(1) We report a rare case of intestinal metaplasia of the renal pelvis with cytokeratin profile and assessment of the tumor markers...

Endoscopic percutaneous resection of a renal pelvis transitional cell carcinoma (TCC) is a viable treatment option in those who would be rendered dialysis dependent following a nephroureterectomy. We report endoscopic percutaneous resection of an upper tract TCC recurrence in a single functioning kidney followed by antegrade renal pelvis BCG instillation with novel placement of inflated angiopl...

Pyelonephritis, in which Staphylococcus intermedius was isolated, was diagnosed in a 4-year-old female Siberian tiger (Panthera tigris altaica). At necropsy, the renal pelvis was dilated with a large amount of purulent exudates. Microscopically, the lesions of renal pelvis and medulla consisted of necrotic foci intermingled primarily with numerous degenerative neutrophils and a few lymphocytes,...

CAsE The patient is a 28-year old female with an obstructed ureteropelvic junction (UPJ) of the left moiety of a horseshoe kidney. The Da Vinci S robotic platform was used. After transperitoneal access was obtained, a window in the mesentery was identified, and the renal pelvis was exposed. A dismembered, spatulated pyeloplasty was performed with transposition of the UPJ to a more dependent por...

A 72-year-old man presented with painless frank haematuria. Investigations included intravenous urogram and abdominal/pelvic CT which revealed a marked focal thickening of the wall of the inferior aspect of the left renal pelvis extending into the lower pole calyx and into the pelviureteric junction resulting in left hydronephrosis. Urine cytology demonstrated clusters of malignant keratinised ...

BACKGROUND Different types of urologic cancers have been associated with colorectal cancer (CRC) in hereditary nonpolyposis CRC, but it is still unknown whether there is an association between urologic cancer and CRC in the general population. We sought to quantify the risk for CRC after urologic cancer and the risk for urologic cancer after CRC in patients without known genetic syndromes. ME...