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The tooth-root sign: a characteristic appearance of distal ureteric calculi
R A Bloom1, E Libson, A Verstandig
1Department of Radiology, Hadassah University Hospital, Jerusalem, Israel.
Clinical Radiology
|March 1, 1988
Abstract:
Diagnostic accuracy in identifying calculi in patients with ureteric colic is poor. Lower ureteric calculi may be confused with other pelvic calcific opacities. A characteristic appearance of some larger lower ureteric calculi is described and likened to the root of a tooth. It is hoped that the tooth-root sign will be of assistance in the diagnosis of distal ureteric stones.