An 80-year-old female with a long-standing history of hypertension. She had a new onset of bilateral dull aching flank pain, fatigue, and hematuria. CBC and kidney function were within normal limits. Ultrasound revealed enlarged left kidney and to a lesser extent right kidney with bilateral hypoechoic ill-defined infiltrating masses indistinct from the renal parenchyma with retroperitoneal extension. The patient was referred for CECT as a superior modality for more precise details regarding the extension of the mass.
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Mahboob et al. (2018) studied this question.
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