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Pseudosequestration

R I Macpherson, L Whytehead

    Journal of the Canadian Association of Radiologists
    |March 1, 1977
    PubMed
    Summary
    This summary is machine-generated.

    A rare condition, "pseudosequestration," involves liver herniation into the chest through a diaphragmatic defect, mimicking pulmonary sequestration. This finding is linked to anomalous blood supply in the right lower lobe.

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    Area of Science:

    • Pediatric Surgery
    • Thoracic Surgery
    • Congenital Abnormalities

    Background:

    • Pulmonary sequestration presents with diverse imaging findings.
    • Distinguishing pseudosequestration from true sequestration is clinically important.

    Purpose of the Study:

    • To describe a novel congenital anomaly termed "pseudosequestration."
    • To highlight the association between diaphragmatic defects, liver herniation, and anomalous pulmonary circulation.

    Main Methods:

    • Surgical case review of three pediatric patients.
    • Radiologic and surgical correlation of chest abnormalities.

    Main Results:

    • All three patients presented with right-sided chest abnormalities.

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  • Surgical findings revealed right hemidiaphragm defects with liver herniation into the thorax.
  • Anomalous systemic arterial supply to the right lower lobe was identified in all cases.

    • Conclusions:

    • "Pseudosequestration" is proposed as a distinct entity within the spectrum of pulmonary sequestration.
    • This condition involves diaphragmatic defects, ectopic liver tissue, and abnormal vascular supply, requiring careful diagnostic consideration.