Large tumor size, the presence of peritumoral neovascularity, and larger peritumoral vessels are features that are more commonly associated with sarcomatoid RCCs than with clear cell RCCs. Sarcomatoid RCCs are also more heterogeneous by texture analysis than clear cell RCCs.
• SEI was detected in a minority of renal oncocytomas and chromophobe RCC. • Interobserver agreement for segmental enhancement inversion was only fair. • SEI is not useful for diagnosing renal oncocytoma with CT or MRI.
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