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Multilocular Cystic Nephroma

History: 60 year old male lost to follow up now returns five years later for reevaluation of a known right renal mass.

Single axial CT scan of the abdomen with IV contrast shows a mass within the right kidney with an enhancing capsule and enhancing internal septations.

Single axial CT scan of the abdomen with IV contrast shows a mass within the right kidney with an enhancing capsule and enhancing internal septations.

This mass is classified as a Bosniak 3 lesion given the enhancing internal septations and enhancing capsule; therefore, it is required to be surgically removed for definitive differentiation between malignancy and multilocular cystic nephroma. Given that it was stable for 5 years when compared to the baseline imaging, multilocular cystic nephroma was favored, which was the final diagnosis on pathology.

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About radiologypics

I am a radiology physician from California, USA.

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