title: Renal cell carcinoma in a renal cyst: a case report and review of the literature.
abstract: We report a case of renal cell carcinoma within a simple renal cyst in the lower pole of the right kidney. Excretory urography showed a mass and ultrasonography revealed multiple renal cysts with a solid component arising from the wall in 1. This finding also was visualized by computerized tomography. Analysis of the cystic fluid showed a high cholesterol level but negative cytological results. At operation a 7 mm. tumor arose from the wall of the cyst. Histopathological examination showed grade 3 renal cell carcinoma with an aneuploid deoxyribonucleic acid content.
authors.affiliation: Department of Urology, University of Umeå, Sweden.
authors.forename: B
authors.initials: B
authors.lastname: Ljungberg
authors.forename: G
authors.initials: G
authors.lastname: Holmberg
authors.forename: J G
authors.initials: JG
authors.lastname: Sjödin
authors.forename: S O
authors.initials: SO
authors.lastname: Hietala
authors.forename: R
authors.initials: R
authors.lastname: Stenling
mesh_terms: D000368:Aged; D002292:Carcinoma, Renal Cell / Q000150:complications* / Q000175:diagnosis / Q000473:pathology; D006801:Humans; D052177:Kidney Diseases, Cystic / Q000150:complications* / Q000175:diagnosis / Q000473:pathology; D007680:Kidney Neoplasms / Q000150:complications* / Q000175:diagnosis / Q000473:pathology; D008297:Male; D014463:Ultrasonography