Simultaneous bilateral renal pelvic tumors

Tsujikawa, Kaoru; Miyake, Osamu; Matsumiya, Kiyomi; Okuyama, Äkïhïko

doi:10.1046/j.1442-2042.1999.06312.x

Cited by 1 publication

(2 citation statements)

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“…Petkovic reported on 45 patients with bilateral tumors, but he did not separate patients with synchronous tumors from those with metachronous tumors, nor did he report tumor stages or grades; nonetheless, 71% of patients in that study were alive 5 years after diagnosis. Most case studies also report favorable outcomes, but follow‐up for these cases typically is < 2 years 2–12. The most reasonable explanation for the observation of acceptable survival is that for most patients, small, low‐grade malignancies, which permitted local resection, were present on at least one side.…”

Section: Discussionmentioning

confidence: 99%

“…Bilateral tumors are very rare and may be synchronous or metachronous. The long‐term outcome for patients with synchronous tumors is largely unknown, because our current knowledge is based primarily on approximately 30 case reports with short follow‐up 2–12. In the current report, we present clinical and histopathologic data for 15 patients with synchronous bilateral upper tract tumors.…”

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Synchronous bilateral ureteral and renal pelvic carcinomas

Holmäng

Johansson

2004

Cancer

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BACKGROUND Synchronous bilateral urothelial tumors of the upper urinary tract are very rare. The authors reported baseline and long‐term follow‐up data for all patients in western Sweden during a 28‐year period. METHODS The authors performed a clinical and histopathologic study of all patients in western Sweden who were diagnosed with a malignant neoplasm in the renal pelvis or ureter between 1971 and 1998. RESULTS Of 936 patients, 15 (1.6%) had synchronous bilateral tumors. The incidence of such tumors decreased in each successive decade. Abuse of phenacetin‐containing analgesics by patients also decreased during the study period, as did the incidence of renal papillary necrosis. The median age at diagnosis of bilateral tumors was 68 years, and 80% of the patients were male. Eleven patients had bilateral tumors of the renal pelvis, two had bilateral ureteral tumors, and two had tumors of the renal pelvis and contralateral ureter. Partial renal pelvic, ureteral, or kidney resection on at least one side was possible in eight patients, and four patients were left untreated on at least one side. Only three patients underwent bilateral nephroureterectomy. Twelve patients (80%) had bladder carcinoma diagnosed either before or after diagnosis of the upper tract tumors. The median survival period for the 11 patients who received surgery for their bilateral tumors was 84 months. CONCLUSIONS The decreasing incidence of synchronous bilateral upper tract tumors may be related to the prohibition of phenacetin‐containing analgesics in the 1960s. Partial resection with preservation of the renal parenchyma was possible in the majority of patients. Survival for patients with bilateral tumors did not differ from that of patients with unilateral tumors. Cancer 2004. © 2004 American Cancer Society.

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Section: Discussionmentioning

confidence: 99%

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confidence: 98%