Stones in the URETER that are formed in the KIDNEY. They are rarely more than 5 mm in diameter for larger renal stones cannot enter ureters. They are often lodged at the ureteral narrowing and can cause excruciating renal colic.
Entry Term(s)
Ureteral Calculus
NLM Classification #
WJ 400
Online Note
to search for chem composition of ureteral calculi, use URETERAL CALCULI/anal 1987-90 & URETERAL CALCULI/metab 1966-86
Stones in the URETER that are formed in the KIDNEY. They are rarely more than 5 mm in diameter for larger renal stones cannot enter ureters. They are often lodged at the ureteral narrowing and can cause excruciating renal colic.