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Recurrent aortic occlusion due to malignancy

P Balas, P Delikaris, A Mizalis

    The Journal of Cardiovascular Surgery
    |July 1, 1981
    PubMed
    Summary
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    A patient experienced aortic bifurcation blockage from colon cancer recurrence. Direct invasion from a prior descending colon tumor is suspected as the cause.

    Area of Science:

    • Oncology
    • Vascular Surgery
    • Gastroenterology

    Background:

    • Colorectal cancer (CRC) is a significant cause of cancer-related mortality.
    • Aortic involvement by metastatic or recurrent CRC is rare but clinically challenging.
    • Understanding routes of tumor dissemination is crucial for effective treatment.

    Observation:

    • A 62-year-old male presented with recurrent aortic bifurcation occlusion.
    • Malignant masses histologically consistent with adenocarcinoma of the ascending colon were identified.
    • Previous resection of ascending colon adenocarcinoma was performed.
    • Extensive investigations ruled out pulmonary, cardiac, or direct aortic primary sources.
    • A local recurrence of a previously excised descending colon tumor was suspected.

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    Findings:

    • The aortic masses were histologically identical to the patient's prior ascending colon adenocarcinoma.
    • No clear origin or dissemination pathway was identified through standard investigations.
    • Massive malignant direct invasion of the aorta from a recurrent descending colon tumor was strongly suspected.

    Implications:

    • This case highlights the potential for direct contiguous spread of colorectal cancer to the aorta.
    • It underscores the importance of considering local recurrence in unexplained aortic masses, even years after initial treatment.
    • Further research into the mechanisms of direct aortic invasion by colorectal cancer is warranted.