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Racial variations in normal ureteric course.

E J Adam, S C Desai, G Lawton

    Clinical Radiology
    |July 1, 1985
    PubMed
    Summary
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    Ureter position on intravenous urograms varies by race, sex, and age. Medial ureter placement is more common in Black patients, impacting urogram interpretation.

    Area of Science:

    • Radiology
    • Urology
    • Human Anatomy

    Background:

    • Intravenous urograms (IVUs) are crucial diagnostic tools in urology.
    • Understanding normal anatomical variations is key for accurate IVU interpretation.
    • Racial and demographic differences in anatomy are increasingly recognized.

    Purpose of the Study:

    • To investigate the positional variations of the ureter relative to vertebral pedicles in normal intravenous urograms.
    • To assess if these variations differ across racial groups, sexes, and ages.
    • To highlight the clinical significance of these findings for radiologists.

    Main Methods:

    • Analysis of 300 consecutive normal intravenous urograms.
    • Systematic assessment of ureter position (medial vs. lateral to pedicles) at various vertebral levels.

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  • Stratification of findings by patient race, sex, and age.

    • Main Results:

    • Medial ureter placement was significantly more frequent in Black patients of African origin compared to White Northern Europeans.
    • This variation occurred more often in males and younger individuals across both racial groups.
    • The right ureter was more frequently positioned medially than the left.

    Conclusions:

    • The medial position of the ureter relative to vertebral pedicles is a normal anatomical variant.
    • This variant is notably more prevalent in Black patients, necessitating awareness during IVU interpretation.
    • Recognizing this variation aids in preventing misdiagnosis and improving diagnostic accuracy in urological imaging.