Simple renal cysts

Case contributed by David Puyó

Patient Data

Age: 75 years
Gender: Male

Hypoattenuating cysts characterized as homogeneous thin-walled and nonenhancing fluid-attenuation lesions.

Case Discussion

Cystic renal lesions are common, increasing in prevalence with the patient’s age. 

The Bosniak classification system for CT evaluation of renal cysts is helpful in determining both malignant risk and required followup / treatment.

Hypoattenuating cysts characterized as homogeneous thin-walled, nonenhancing fluid-attenuation lesions are classified on Bosniak category I (simple renal cysts), and are rarely problematic when encountered incidentally at contrast–enhanced CT. 

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Case information

rID: 18176
Published: 17th Jun 2012
Last edited: 14th Oct 2019
System: Urogenital
Inclusion in quiz mode: Excluded

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