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Related Experiment Videos

[Double cancer in urology].

T Sugiyama, Y C Park, M Iguchi

    Hinyokika Kiyo. Acta Urologica Japonica
    |October 1, 1984
    PubMed
    Summary

    Double cancer, defined as two distinct cancers, occurs more frequently than previously thought, with a 6.6% incidence observed in urinary system patients. Uterine cancer patients showed a higher risk of developing secondary pelvic cancers.

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    Area of Science:

    • Urology
    • Oncology
    • Gynecology

    Context:

    • Urinary system tumors are common, with double tumors (two distinct cancers) observed in 26 out of 397 patients.
    • The study utilized the Billroth definition for double cancer, including patients with prior cancer history and treatment.
    • A significant incidence of 6.6% for double cancer was found, challenging the notion that it is a rare condition.

    Purpose:

    • To investigate the incidence and characteristics of double tumors within the urinary system.
    • To analyze the relationship between primary uterine cancer and secondary pelvic viscera cancers.
    • To determine if pelvic surgeries or irradiation for uterine cancer influence secondary cancer development.

    Summary:

    • The study identified a 6.6% incidence of double cancer among urinary system patients, indicating it is not rare.
    • Double cancer was not specific to any urinary organ, but occurred more frequently in female patients.
    • A notable finding was the higher incidence of secondary pelvic cancers in women with a history of uterine cancer, with earlier onset observed.

    Impact:

    • This research highlights the underrecognized prevalence of double cancer, particularly in the context of urinary system malignancies.
    • Findings suggest a potential link between uterine cancer treatment (surgery or irradiation) and the development of secondary pelvic cancers.
    • The study underscores the need for increased awareness and surveillance for secondary malignancies in patients with a history of gynecological cancers.

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