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PubMedDate not supplied

[Cholesteatoma of the kidney pelvis in horseshoe kidney].

This paper presents one case of cholesteatoma of the left renal pelvis of a horseshoe kidney. This is quite an unusual process presenting an uncertain etiology and originated from a escamour metaplasia of the urothelium. Diagnosis can be made by X-rays and unlike leukoplasia it is not considered to be a pre-malignant condition. Probable etiologies, diagnosis and treatment are commented.

Adolescent↗
PubMed1994

[Explosive metastasis of a cancer of the kidney pelvis in analgesic kidney].

A 48-year-old male experienced sudden pain in the right flank and macrohematuria with subsequent repeated episodes of painless macrohematuria. In the radiological work-up, CT was interpreted as inflammatory enlargement of the right kidney and MRI diagnosed renal vein thrombosis. There was some suspicion that there might be a malignancy. Five months later the patient had to be admitted to the hospital, because of increasing flank pain, desiccation and general signs of inflammatory disease. Radiological changes compatible with pulmonary metastases were found. Biopsy of enlarged mediastinal lymph nodes revealed undifferentiated carcinoma. Because of the expression of Cytokeratin primary urothelial carcinoma was suspected. The patient then deteriorated rapidly. No further specific therapy could be carried out. Death was chiefly caused by respiratory insufficiency 5 months after the first episode of pain and 1 month after admission. Autopsy revealed a poorly differentiated urothelial carcinoma of the right renal pelvis, with extensive carcinomatous angiomatosis and metastases to the left kidney, lungs, and regional and mediastinal lymph nodes. Independently of the carcinoma, both kidneys also showed interstitial nephritis, papillary necrosis and capillarosclerosis, compatible with analgesic-user kidney ("phenacetin kidney") in the absence of a corresponding history.

Carcinoma, Transitional Cell↗
PubMed1993

[Arteriovenous fistula and kidney pelvis thrombus after percutaneous kidney puncture].

Percutaneous renal biopsy was performed in a 40-year old transplant recipient suffering from renal function impairment. The examination of the main transplant artery by duplex Doppler ultrasonography showed normal values for the resistive index and renal blood flow volume. Postbioptic realtime ultrasonography showed an echogenic mass in the renal collecting system, which was dilatated in prior examinations. In addition, we found an arteriovenous fistula by colour coded Doppler ultrasonography showing a characteristic Doppler wave-form shape in an interlobar artery. No changes in the resistive index and renal flow volume could be demonstrated by Doppler examination of the main renal artery. The complications of percutaneous biopsy disappeared spontaneously. Although the incidence of major complications after renal graft biopsy with the automated biopsy instrument is very low, our report demonstrates typical complications following percutaneous renal biopsy. We conclude that B-scan and colour coded Doppler ultrasonography are sensitive diagnostic methods to observe patients post biopsy for potential complications.

Adult↗
PubMed1992

[Complications in the kidney pelvis and the ureter following kidney transplantation].

Development of complications of the pelvis and the ureter, especially obstruction and necrosis with an urinary fistula was seen in 35 of 751 patients after kidney transplantation (4.6%). In this study they occurred significantly often in patients with multiple renal arteries of the donor kidney, for example pole arteries. An arterial angiography of the aorta abdominalis in living donors before transplantation is not be neglected. The diagnosis of urological complications includes sonography, in cases of ureteral obstruction percutaneous antegrade urography, and in a given case computed tomography.

Constriction, Pathologic↗