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Related Experiment Videos

Lymphangitic carcinomatosis: lung scan abnormalities.

N Green, L Swanson, W Kern

    Journal of Nuclear Medicine : Official Publication, Society of Nuclear Medicine
    |April 1, 1976
    PubMed
    Summary

    Lymphangitic carcinomatosis, a rare lung cancer spread, is often missed before death. This study highlights its subtle signs in breast cancer patients, emphasizing perfusion lung scans for diagnosis.

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    Area of Science:

    • Oncology
    • Pulmonary Medicine
    • Diagnostic Imaging

    Background:

    • Lymphangitic carcinomatosis represents a severe, terminal stage of cancer dissemination.
    • Ante mortem diagnosis of lymphangitic carcinomatosis is infrequently achieved.
    • Breast cancer is a common primary malignancy with potential for widespread metastasis.

    Purpose of the Study:

    • To investigate the diagnostic utility of lung imaging in patients with suspected lymphangitic carcinomatosis.
    • To correlate imaging findings with autopsy results in cases of breast cancer metastasis to the lungs.
    • To improve ante mortem detection rates of lymphangitic carcinomatosis.

    Main Methods:

    • Retrospective analysis of four autopsy-proven cases of breast cancer with lymphangitic lung metastases.

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  • Review of chest X-rays, ventilation lung scans, and perfusion lung scans.
  • Correlation of imaging findings with histopathological autopsy data.

    • Main Results:

    • Two patients had normal chest X-rays, and three had normal ventilation lung scans.
    • All four patients exhibited irregular peripheral perfusion defects on perfusion lung scans.
    • Autopsy confirmed lymphatic permeation by tumor and tumor emboli in small pulmonary arteries.

    Conclusions:

    • Perfusion lung scans may reveal characteristic defects indicative of lymphangitic carcinomatosis, even with normal chest X-rays and ventilation scans.
    • Early detection of lymphangitic carcinomatosis is challenging but crucial for patient management.
    • Findings underscore the importance of considering perfusion lung scans in the diagnostic workup of advanced breast cancer with pulmonary symptoms.