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Bladder shape and racial origin.

S C Desai, C S Eliot, G Lawton

    Clinical Radiology
    |July 1, 1985
    PubMed
    Summary
    This summary is machine-generated.

    The shape of the full bladder, often conical or pear-shaped, is a normal variant more common in Black African males. This finding was observed in normal intravenous urograms without pelvic pathology.

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    Area of Science:

    • Urology
    • Radiology
    • Human Anatomy

    Background:

    • The shape of the urinary bladder can vary significantly among individuals.
    • Understanding normal anatomical variations is crucial for accurate radiological interpretation.
    • Previous studies have not extensively documented racial and sexual differences in bladder morphology.

    Purpose of the Study:

    • To investigate the prevalence of a conical or pear-shaped full bladder.
    • To determine if this bladder shape is associated with specific demographic groups (race, sex).
    • To assess the relationship between this bladder morphology and ureteral position.

    Main Methods:

    • Retrospective analysis of 70 normal intravenous urograms.
    • Evaluation of full bladder shape and ureteral position.

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  • Comparison of bladder shape prevalence across racial and sexual groups.

    • Main Results:

    • A conical or pear-shaped bladder was observed more frequently in patients of Black African origin compared to White Northern Europeans.
    • This morphology was also more common in males than in females.
    • The conical bladder shape was found in the absence of pelvic pathology.
    • Non-pathological medial deviation of the ureters was not strongly associated with the conical bladder shape.

    Conclusions:

    • The conical or pear-shaped full bladder is considered a normal anatomical variant.
    • Racial and sexual factors may influence the prevalence of this bladder shape.
    • The mechanisms underlying conical bladder formation and ureteral medial placement appear to be independent.