Kidney CT Appearances

Polycystic Kidney Disease CT Findings

Numerous renal cysts, varying in shape and size
Renal enlargement
Most cysts are water attenuated
Very thin wall
Reduction in sinus fat
Expansion of the cortex
Usually associated with decreased renal function
Cyst count for PKD varies with age:
- 15-39: at least 3 cysts (unilateral or bilateral)
- 40-59: at least 2 cysts in each kidney
- 60+: at least four cysts in each kidney