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Related Experiment Videos

Cloacogenic carcinoma.

J D Sink, S A Kramer, D D Copeland

    Annals of Surgery
    |July 1, 1978
    PubMed
    Summary
    This summary is machine-generated.

    Cloacogenic carcinoma, a rare anorectal tumor, arises from embryonic remnants and predominantly affects women. Surgical resection offers a 50% five-year survival rate, with frequent inguinal lymph node metastasis.

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    Area of Science:

    • Oncology
    • Embryology
    • Surgical Pathology

    Background:

    • Cloacogenic carcinoma is a rare malignancy (2-3% of anorectal cancers) originating from the embryonic cloacal membrane remnant.
    • This tumor disproportionately affects women, occurring more than twice as frequently compared to men.

    Observation:

    • Tumors typically manifest as fungating or ulcerating anorectal lesions.
    • Less commonly, cloacogenic carcinoma can present as a submucosal mass within anal ducts.

    Findings:

    • Wide abdominoperineal resection is the primary treatment modality.
    • The five-year survival rate following this surgical intervention is approximately 50%.

    Implications:

    • Over 50% of patients experience inguinal lymph node metastasis during the disease course.
  • Common sites for distant metastasis include the liver and lungs, highlighting the aggressive nature of this cancer.