Neonatal hydronephrosis

Last revised by Henry Knipe on 3 Jan 2023

Citation, DOI, disclosures and article data

Citation:

Knipe H, Chieng R, Kang O, et al. Neonatal hydronephrosis. Reference article, Radiopaedia.org (Accessed on 20 Apr 2024) https://doi.org/10.53347/rID-36967

DOI:

https://doi.org/10.53347/rID-36967

Permalink:

https://radiopaedia.org/articles/36967

rID:

36967

Article created:

20 May 2015, Henry Knipe ◉ ◈

Disclosures:

At the time the article was created Henry Knipe had no recorded disclosures.

View Henry Knipe's current disclosures

Last revised:

3 Jan 2023, Henry Knipe ◉ ◈

Disclosures:

At the time the article was last revised Henry Knipe had the following disclosures:

Integral Diagnostics, Shareholder (ongoing)
Micro-X Ltd, Shareholder (ongoing)

These were assessed during peer review and were determined to not be relevant to the changes that were made.

View Henry Knipe's current disclosures

Revisions:

9 times, by 8 contributors - see full revision history and disclosures

Systems:

Urogenital, Paediatrics

Neonatal hydronephrosis is most commonly diagnosed antenatally as fetal pylectasis, and in the majority of cases is due to pelviureteric junction (PUJ) obstruction.

grade 1: mildly dilated renal pelvis without calyceal dilatation
grade 2: further dilation of renal pelvis with dilatation of some calyces
grade 3: renal pelvis and calyces are dilated, however, the renal parenchymal thickness is normal
grade 4: all features of grade 3, together with thinning of renal parenchyma