Bosniak renal cyst - type IV

Case contributed by Dr Andrew Dixon

Presentation

Incidental complex renal cyst on ultrasound.

Patient Data

Age: 60
Gender: Male

Triphasic Renal CT

Modality: CT

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Modality: Diagram

An illustrative example of a Type IV cyst

Case Discussion

Cystic left renal lower pole mass with enhancing nodular components and multiple thick enhancing septations. Appearance is consistent with a 'clearly malignant' Bosniak IV renal cyst.

Nephrectomy was performed and the lesion was confirmed to be a renal cell carcinoma, as was an adjacent smaller lesion which can be seen directly superior to the larger mass.  

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Case Information

rID: 23402
Case created: 12th Jun 2013
Last edited: 31st Jul 2016
System: Urogenital
Tags: bosniak, rcc
Inclusion in quiz mode: Included

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