Segmental renal hypoplasia

Segmental renal hypoplasia, also known as the Ask-Upmark kidney, is a type of renal hypoplasia. It is often found in young females with severe hypertension. The aetiology is unknown but has been postulated to be congenital or a sequelae of pyelonephritis. It is associated with severe juvenile hypertension.

Radiographic features

Intravenous urography

May show a thin cortex with calyceal clubbing and narrowing of the infundibulum.

Share article

Article information

rID: 24774
System: Urogenital
Tag: stub, cases, refs
Synonyms or Alternate Spellings:
  • Renal segmental hypoplasias
  • Ask Upmark kidney

Support Radiopaedia and see fewer ads

Updating… Please wait.

Alert accept

Error Unable to process the form. Check for errors and try again.

Alert accept Thank you for updating your details.