Patient Data
Gender: Female
From the case:
Bosniak renal cyst - type IV
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Axial non-contrast

Computed tomography shows a unilocular cystic lesion in the lower pole of the right kidney with thick and irregular enhancing walls
Case Discussion
The probability of malignancy in a cystic renal lesion is assessed by the Bosniak classification.
The classification is based on computed tomography imaging criteria