case_images: PMC9885144_01
case_images: Preoperative renal enhanced computed tomography. Arrows show the tumors in the upper poles of bilateral native kidneys. (A) the tumors are enhanced in the cortical phase; (B) The enhancement of tumors is markedly reduced in the medullary phase, showing the performance of "fast in and fast out".
case_images: fonc-12-1112343-g001.jpg
case_images: PMC9885144_01_fonc-12-1112343-g001.jpg
case_images: f1
case_images: Surprisingly, the CT revealed that the patient also had a nodule in the upper pole of the right native kidney and mild enhancement was seen in the nodule in the cortical phase ( Figure 1 ).
case_images: Postoperative pathology (HEx200): (A) The tumor in the left native kidney is clear cell renal cell carcinoma. The cancer cells are transparent and arranged in empty nests, and thin-walled sinusoidal vessels form a reticular septum; (B) The tumor in the left native kidney is type I papillary renal cell carcinoma of the right native kidney. Papillary structures formed by fibrovascular axis with foamy macrophages.
case_images: fonc-12-1112343-g002.jpg
case_images: PMC9885144_01_fonc-12-1112343-g002.jpg
case_images: f2
case_images: Pathological diagnosis ( Figure 2 ): (left native kidney) clear cell RCC, WHO grade 1, T1bN0M0; (right native kidney) type 1 papillary RCC with papillary adenoma formation, Fuhrman grade 1, T1aN0M0.