hydroureter
Pronunciation: high-dro-YOO-reh-ter
Abnormal dilation of the ureter, often indicating obstruction or reflux.
Full Definition
Hydroureter is the pathological dilation of one or both ureters, typically resulting from obstruction, vesicoureteral reflux, or congenital anomalies. In pediatric urology, it's commonly seen in association with posterior urethral valves, ureteropelvic junction obstruction, or high-grade vesicoureteral reflux. The degree of dilation can range from mild to severe and may be associated with decreased ureteral peristalsis and impaired drainage. Imaging studies such as ultrasound, VCUG, or urography help characterize the extent and underlying cause, guiding appropriate treatment decisions.
Usage
Usage note: British spelling uses 'dilatation' while American prefers 'dilation'.
In Context
- "Prenatal imaging demonstrated bilateral hydroureter with associated oligohydramnios." — Maternal-fetal medicine consultation
- "The degree of hydroureter improved following successful valve ablation." — Follow-up imaging report