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Kidney CT Appearances

 

 


Bosniak 2 Cyst CT Findings

  • Thin, non-enhancing wall
  • Few thin septa
  • Fine or slightly thickened calcifications
  • No nodularity
  • Complicated renal cysts < 3cm are classified as Bosniak 2
  • Routine follow-up is typically needed

Bosniak 2 Cyst CT Findings

Other Information About Bosniak Cysts

Etiology:

  • Usually occur after age 40

Epidemiology:

  • Usually occur after age 40
  • Males are more likely to have malignant cysts

Presentation:

  • Usually asymptomatic

Prognosis:

  • Usually does not require treatment as most are Bosniak 1
  • Symptomatic cysts may need to be removed

Related Pearls: Renal Cysts and Cystic Disease

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