case_images: PMC10642977_01
case_images: a Contrast MRI of kidneys prior to treatment. Initial MRI demonstrated a heterogeneously enhancing large right renal mass (10.4 x 7.8 x 6.1 cm) and hypoenhancement of the inferior aspect of LT kidney with enhancement of LT renal vein. b Contrast MRI post-neoadjuvant immunotherapy. Repeat MRI demonstrated interval decrease in size of the right renal mass (7.0 x 6.2 x 8.2 cm) but unchanged size of the left renal mass with persistent thrombus in left renal vein.
case_images: cro-2023-0016-0001-533936_F01.jpg
case_images: PMC10642977_01_cro-2023-0016-0001-533936_F01.jpg
case_images: F1
case_images: Further dedicated imaging with a contrast MRI of the kidneys re-demonstrated the right renal mass (10.4 x 7.8 x 6.1 cm) and showed hypoenhancement of the inferior aspect of the left kidney and corresponding enhancement of the left renal vein, suggestive of infiltrative process/malignancy (Fig. 1a). After neoadjuvant treatment, a repeat MRI demonstrated an interval decrease in the size of the right renal mass (7.0 x 6.2 x 8.2 cm) but an unchanged size of the left renal mass with persistent thrombus in the left renal vein (Fig. 1b).