Publications by authors named "Andreas Loeser"

Background: Patients undergoing radical cystectomy (RC) for urothelial carcinoma of the bladder (UCB) are at risk for upper urinary tract recurrence (UUTR), especially in case of carcinoma in situ (CIS). Data on the impact of CIS in the urinary bladder on ureteral tumour involvement or UUTR are conflicting. We presently evaluate the accuracy of intraoperative frozen section analysis (FSA) of the ureteral margin, the incidence of ureteral tumour involvement and their impact on UUTR in patients undergoing RC for UCB with versus without CIS of the bladder.

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Background: To evaluate oncological and clinical outcome in patients with renal cell carcinoma (RCC) and tumor thrombus involving inferior vena cava (IVC) treated with nephrectomy and thrombectomy.

Methods: We identified 50 patients with a median age of 65 years, who underwent radical surgical treatment for RCC and tumor thrombus of the IVC between 1997 and 2010. The charts were reviewed for pathological and surgical parameters, as well as complications and oncological outcome.

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Objectives: Serum carcino-embryonic antigen (CEA) has become a useful tumor marker in patients with colorectal adenocarcinoma. Patients who undergo uroenteric reconstruction, such as urinary diversion (UD), have an increased risk of developing malignant changes in their UD. We compared serum CEA levels in patients with different types of UD, evaluating long-term CEA changes and assessing its potential for use as a tumor marker of malignant transformation in the UD.

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Purpose: We provide the long-term results of renal transplantation into continent urinary intestinal reservoirs as a planned 2-stage procedure.

Materials And Methods: Between November 1990 and January 2009, 18 patients underwent cadaveric or living related renal transplantation into continent urinary reservoirs (continent cutaneous diversion 16, orthotopic substitution 2). All patients were prospectively followed.

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Objectives: To compare surgical techniques and long-term outcomes in patients undergoing bladder neck closure (BNC) and continent vesicostomy for devastated bladder outlet.

Methods: A total of 17 patients who underwent BNC, omental interposition, and continent vesicostomy between 1994 and 2008 were analyzed. Indication for surgery was recurrent anastomotic stricture combined with postradical prostatectomy incontinence (n = 10), postvulvectomy (n = 1), and neurogenic bladder dysfunction (n = 6).

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Objectives: To compare retrospectively the outcome of testis-sparing surgery (TSS) to radical orchiectomy (RO) in patients with Leydig cell tumor (LCT).

Methods: Between 1992 and 2008, 16 patients with LCT of the testis were identified. All but 1 tumor could be detected by ultrasonography.

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Metanephric adenomas in children are very rare. We present the case of a 2-year-old girl with a mass of the left kidney. The lesion was completely removed by nephron-sparing surgery.

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Schwannomas of the penis are extremely rare. A 69-year-old man presented with a circumscribed asymptomatic tumor on the dorsum of the glans penis. Histopathologic examination of the surgical specimen showed a benign schwannoma.

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Background: Neuroblastoma is a common malignancy in children, but rarely occurs in adults.

Case Report: We report the case of a 39-year-old woman who was treated for her fourth recurrence of a pelvic neuroblastoma.

Conclusions: Because of the rarity of these tumors during adolescence and adulthood, little information is available on the clinical course of patients with neuroblastoma in this age group.

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We report on a 14-year-old girl with pyelonephritis, secondary to a foreign body, in her urinary bladder. A self-inserted pencil led to stone formation and bladder perforation at two sites. Eighteen months after insertion, the pencil was removed by suprapubic cystotomy.

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