To compare the diagnostic performance of computed tomography, magnetic resonance imaging and contrast enhanced ultrasonography for the assessment of complex renal cysts.We carried out a prospective single-center study from January 2012 to December 2013. We included patients with Bosniak category 2F or 3 renal cysts found on computed tomography and reviewed by two expert radiologists. Magnetic resonance imaging and contrast-enhanced ultrasonography were then carried out. Patients with a Bosniak ≥3 cyst on magnetic resonance imaging, as well as those upgraded as appearing malignant on contrast-enhanced ultrasonography, were surgically managed. Imaging results were compared with histological data. For patients without surgery, imaging examinations were compared with follow-up data. For each imaging examination, diagnostic performance and Cohen's kappa coefficient were assessed.A total of 47 patients were included. The median follow up was 36 months (range 17-48 months). At initial computed tomography, cysts were classified as Bosniak 2F and Bosniak ≥3 in 34 and 13 patients, respectively. Magnetic resonance imaging found 13 Bosniak ≥3 cysts, and contrast-enhanced ultrasonography upgraded six more patients with cysts that appeared malignant. A total of 19 patients had surgery. Histological analysis reported 14 malignant tumors. No tumor progression was found in followed-up patients. Computed tomography showed poor sensitivity (36

作者：Guillaume, Defortescu；Jean-Nicolas, Cornu；Sofiane, Béjar；Anthony, Giwerc；Fran?oise, Gobet；Claire, Werquin；Christian, Pfister；Fran?ois-Xavier, Nouhaud

来源：International journal of urology : official journal of the Japanese Urological Association 2017 年 24卷 3期