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Papillary renal cell cancer is strongly associated with simple renal cysts
Harri Visapää1, Esko Glücker, Jari Haukka
1Department of Urology, Helsinki University Central Hospital and University of Helsinki, Helsinki, Finland.
Introduction:
The purpose of this study was to evaluate the prevalence of simple renal cysts (SRCs) in patients with renal neoplasia.
Patients And Methods:
The study population consisted of 482 patients who underwent partial or radical nephrectomy for kidney tumour between 2006 and 2010. Prevalence of cysts was evaluated retrospectively on a preoperative CT or MRI scan.
Results:
SRCs are more prevalent in patients with papillary renal cell cancer (RCC) than patients with clear cell RCC. All obese (BMI ≥30) patients in our study population had SRCs.
Conclusions:
This is the first study to show an association between SRCs and papillary RCC.
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