The term, megaureter, is usually reserved for ureters >7 mm in diameter. The term hydroureteronephrosis (or hydronephroureterosis) may be used when ureteric dilatation occurs in the presence of hydronephrosis.
Clinical presentation is variable but may include:
- flank pain
- nausea, vomiting
Hydroureter is a non-specific finding. Etiologies include:
A ureteral diameter of >3 mm has been described as the cut-off for hydroureter .
History and etymology
From the Latin "hydro", meaning of water.