Renal cell carcinoma in a renal cyst: a case report and review of the literature.

Ljungberg, B; Holmberg, G; Sjödin, J G; Hietala, S O; Stenling, R · J Urol · 1990

case_report · Level V

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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.

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