title: Incidental renal neoplasms: incidence in Los Angeles County, treatment and prognosis.
abstract: The proportion of 3232 malignant renal parenchymal tumors diagnosed at an asymptomatic stage in Los Angeles County over a 13 year period was 15%. A comparison of the proportion of tumors that were asymptomatic at diagnosis over two four year periods, showed no significant change. Asymptomatic tumors were localized to the kidney in 77.5% of cases and had produced metastases in 9.4%. Conversely, symptomatic tumors were localized in only 43.9% and had metastases in 28%. These data are compared with recent literature concerning the incidence, diagnosis, pathology, prognosis and treatment of incidental renal neoplasms.
authors.affiliation: Department of Surgery, UCLA School of Medicine 90024.
authors.forename: A W
authors.initials: AW
authors.lastname: Ritchie
authors.forename: J B
authors.initials: JB
authors.lastname: deKernion
mesh_terms: D000236:Adenoma / Q000453:epidemiology* / Q000628:therapy; D002140:California; D002292:Carcinoma, Renal Cell / Q000453:epidemiology* / Q000628:therapy; D006801:Humans; D007680:Kidney Neoplasms / Q000453:epidemiology* / Q000628:therapy; D009392:Nephrectomy; D011379:Prognosis