Fig. 1From: Impact of tumor contact surface area on collecting system entry in robot-assisted partial nephrectomy: a retrospective analysisThree-dimensional tumor quantification based on CT images. The figure shows a renal cell carcinoma (RCC) of the left kidney using coronal CT. The resection margin was stained yellow, and the RCC was stained purple (a). Image of the contact surface after RCC resection (red, b)Back to article page