Search results for "Kidney Pelvis"

Local excision of urothelial cancer of the upper urinary tract.

1986

Abstract In 9 of 93 patients (9.7%) with urothelial cancer of the upper tract (7 renal pelvis tumors, 3 ureteral tumors), conservative surgery was employed using a free peritoneal autotransplant for replacement of the renal pelvis in 5 kidneys. Absolute indications for conservative surgery were solitary kidneys/nonfunctioning contralateral kidneys in 4 patients and bilateral tumors in 1 patient. Local recurrences developed 1-3 years after operation in 4 of 6 kidneys (3 patients), 3 of which had grade-2 and grade-3 primary lesions. All patients were treated successfully by repeated local excision. In the presence of a normal contralateral kidney, local tumor excision was done electively in 4…

Pyelotransverse pyelocolostomy: an alternative method for high urinary diversion in patients with extended bilateral ureter damage.

1991

After previous radiation due to pelvic malignoma or after multiple operations, the ileal conduit as well as sigmoid conduit are associated with an increased rate of complications. In these patients, the middle and distal ureter often cannot be considered for reimplantation due to fibrosis. High anastomosis to a bowel segment which is undamaged proves favorable. The transverse colon, conveniently situated in the cranial abdomen, is close enough to the kidneys for such a high anastomosis and is mostly spared from irradiation. In cases where severely damaged ureters forbid connection to a normal transverse conduit, we performed a pyelotransverse pyelocolostomy with high anastomosis of the bowe…

Bolus-enhanced renal spiral CT: technique, diagnostic value and drawbacks

1994

Abstract In addition to pre- and postcontrast renal CT scans, early bolus-enhanced spiral scans during demarcation of the corticomedullary junction were acquired in 85 patients. The diagnostic value and drawbacks of the three imaging series in the evaluation of renal disease were assessed. Renal calcifications and calculus disease detected at precontrast scans (18%) were obscured after contrast administration and excretion in most cases. In the detection of renal lesions bolus-enhanced spiral CT and delayed postcontrast scans had an identical diagnostic yield (94%). Bolus-enhanced spiral CT was superior in the assessment of lesion vascularity and vascular anatomy as well as opacification of…

Ureteropelvic junction obstruction in childhood.

1992

Transitional cell carcinoma of the renal pelvis presenting as a renal abscess.

2002

We report on a 76-year-old woman who was diagnosed with a primary renal abscess of the left kidney. After percutaneous drainage, no clinical improvement was observed. Surgical exploration and nephrectomy were performed. The histologic evaluation revealed an unsuspected transitional cell carcinoma of the renal pelvis, which had been misinterpreted as a primary renal abscess. Malignancy must be considered as an underlying cause for the formation of a renal abscess, especially if no other predisposing factors such as diabetes mellitus or urinary stones are present.

Stimulation of calcium uptake by norepinephrine or high external potassium in human calyces and renal pelvis.

1989

The effects of stimulation with either 10 mumol/l norepinephrine or 85 mmol/l extracellular potassium concentration on calcium uptake were studied in muscle strips from human renal calyces and from the renal pelvis. The apparent uptake of calcium under control conditions was essentially complete after 30 min. Stimulation of the muscle strips with norepinephrine or high external potassium significantly (P less than 0.05) increased the calcium uptake over the control values at 30 and 100 min, whereas 45Ca efflux was virtually not affected. It is concluded that the mechanical responses of the muscle strips to norepinephrine or high external potassium correspond with an increased uptake of calc…

Handling and pathology reporting of specimens with carcinoma of the urinary bladder, ureter, and renal pelvis.

2003

Abstract Objective: Pathologists play a pivotal role in the diagnosis and in the report of the pathological features related to prognosis. Methods: To meet these endpoints, the following issues must be accomplished: adequate information about the patient history, proper handling of the specimens, identification of the reliable histopathological techniques necessary to reach the more detailed diagnostic information and evaluate the prognostic variables, and a standardized pathological report. Results: Recent efforts to standardize the histopathological evaluation have generated significant confusion among the urological and pathological communities as well. No consensus has been achieved abo…