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Related Experiment Videos

Lingular lung biopsy: is it representative?

S L Newman, R P Michel, N S Wang

    The American Review of Respiratory Disease
    |November 1, 1985
    PubMed
    Summary
    This summary is machine-generated.

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    The lingula may not be a valid site for open lung biopsy due to more prevalent nonspecific changes like fibrosis and pulmonary vasculopathy compared to other lung segments. Inflammation levels were similar across all examined lung areas.

    Area of Science:

    • Pulmonary Pathology
    • Surgical Pathology

    Background:

    • The lingula is sometimes avoided for open lung biopsy due to suspected nonspecific changes.
    • The validity of lingular biopsy requires further investigation.

    Purpose of the Study:

    • To evaluate the suitability of the lingula as a biopsy site.
    • To compare pathological changes in the lingula versus other lung segments.

    Main Methods:

    • Analysis of 50 autopsy lung specimens (lingula, left lower lobe, right upper lobe).
    • Histological examination using hematoxylin-eosin and Masson's trichrome stains.
    • Morphometric and semiquantitative grading for fibrosis, vascular changes, and inflammation.

    Main Results:

    • Fibrosis and pulmonary vasculopathy were significantly more pronounced in the lingula compared to other lobes (p < 0.05).

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  • No significant differences in acute or chronic inflammation were observed between the lingula and other segments (p > 0.10).
  • No significant differences in morphologic parameters were found between the left lower and right upper lobes (p > 0.10).

    • Conclusions:

    • The lingula exhibits more significant nonspecific changes, particularly fibrosis and vasculopathy.
    • These findings suggest the lingula may not be an optimal site for open lung biopsy.