Presentation
Right flank pain and microscopic hematuria.
Patient Data
Age: 70 years
Gender: Male
From the case:
Renal cystic mass - Bosniak class IV
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A 48 mm partially exophytic cystic mass with a thick enhancing wall and septal and eccentric enhancing nodules is noted in the middle portion of the right kidney. A few small dilated collateral vessels are pointed out in perinephric space.
Additionally, several simple cortical cysts are seen in the kidneys.
A few small cysts are seen in the liver. (correlated with ultrasound finding)
A 30 mm diverticulum is noted at the medial aspect of D2.
Case Discussion
Regarding enhancing nodules the right renal cystic mass is consistent with a Bosniak class IV lesion. Up to 90% of Bosniak class IV masses are malignant, and surgical excision is needed.
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