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A 70-year-old male with papillary RCC. (a) T1 weighted fat saturated pre-contrast image shows a right renal mass (arrow) with intermediate T1 intensity. (b) T1 weighted fat saturated post-contrast image shows the mass with indeterminate enhancement. (c) Subtraction image shows clear enhancement in the mass consistent with a tumor which was later resected and proven to a papillary RCC.
