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Renal cystic mass (Bosniak class IV)

Case contributed by Mohammad Taghi Niknejad
Diagnosis almost certain

Presentation

Workup for hematuria.

Patient Data

Age: 55 years
Gender: Female

Large exophytic cystic mass, 92×78×72 mm in diameters, is noted at anterior aspect of left kidney. Thick internal septation and solid components are seen within the lesion which shows enhancement on post contrast images .The urinary drainage tract is unobstructed.

Two small hypo dense lesions , 6 mm and 7 mm in diameters , are noted at right lobe of the liver which show no apparent enhancement on post contrast images . 

Case Discussion

Large cystic mass of left kidney (Bosniak class IV); most likely compatible with renal cell carcinoma.

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