Preferred Label : P1 Hydronephrosis;
Alternative definition : NICHD: Postnatal Hydronephrosis with the following clinical findings: 1) APRPD is
10 to less than 15 mm, 2) central calyceal dilation may be present, but peripheral
calyceal dilation is considered to increase risk, 3) renal parenchyma should have
normal thickness and appearance, 4) the ureter is not seen, and 5) the bladder is
normal. If there is central calyceal dilation but the APRPD is less than 10 mm, it
is still considered UTD P1. (Adapted from: Hiep T. Nguyen, Carol B. Benson, Bryann
Bromley, Jeffrey B. Campbell, Jeanne Chow, Beverly Coleman, Christopher Cooper, Jude
Crino, Kassa Darge, C.D. Anthony Herndon, Anthony O. Odibo, Michael J.G. Somers, Deborah
R. Stein; Multidisciplinary consensus on the classification of prenatal and postnatal
urinary tract dilation (UTD classification system); Pediatric Urology; December 2014
Volume 10, Issue 6, Pages 982-998);
Origin ID : C123183;
UMLS CUI : C4054281;
Has associated anatomic sites
- Semantic type(s)
- concept_is_in_subset
