What are the ultrasonographic diagnostic criteria for autosomal dominant polycystic kidney disease (ADPKD) in patients with a family history but unknown genotype?

Updated: Mar 24, 2020
  • Author: Roser Torra, MD, PhD; Chief Editor: Vecihi Batuman, MD, FASN  more...
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Ultrasonographic diagnostic criteria for ADPKD in patients with a family history but unknown genotype were established by Pei et al in 2009 and are as follows [6] :

  • Three or more (unilateral or bilateral) renal cysts in patients aged 15-39 years
  • Two or more cysts in each kidney in patients aged 30-59 years

Fewer than 2 renal cysts in the findings provides a negative predictive value of 100% and can be considered sufficient for ruling out disease in at-risk individuals older than 40 years of age.

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