Radiology In a patient with renal cell carcinoma with a thrombus in IVC renal vein, which is the best investigation for diagnosis? A CT scan B Angiography C Colour doppler imaging D IVP 💡 Explanation In a patient with renal cell carcinoma with a thrombus in IVC renal vein, which is the best investigation for diagnosis? ✓ Correct Answer: A. CT scan