多房性嚢胞状腎細胞癌の2例

概要

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We report 2 cases of renal cell carcinoma which rarely occur as multilocular cystic masses. By means of echography, both cases were discovered as abnormal shadows occupying the middle portion of the left kidney. Using computerized tomography and selected renal arteriography, we tried to obtain an accurate diagnosis, but few specific malignant findings were gained. Finally, we made the histopathological diagnosis. In addition, we concluded by careful pathological examination that they were multilocular cystic growths. It was difficult to differentiate them preoperatively from multilocular cystic nephroma. Both patients are still alive without tumor recurrence.