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Microvascular changes in Dupuytren's contracture.

C W Kischer, D P Speer

    The Journal of Hand Surgery
    |January 1, 1984
    PubMed
    Summary

    Dupuytren

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    Area of Science:

    • Fibrotic lesions research
    • Vascular biology
    • Hand surgery

    Background:

    • Certain fibrotic lesions like hypertrophic scars exhibit microvascular occlusion.
    • Low oxygen tension is a known stimulus for excessive collagen production, contributing to scar formation.
    • Dupuytren's contracture shares characteristics with other fibrotic lesions, suggesting it as a potential model for study.

    Purpose of the Study:

    • To investigate the presence of occluded microvessels in Dupuytren's contracture.
    • To determine if Dupuytren's contracture serves as a model for microvascular occlusion in fibrotic conditions.

    Main Methods:

    • Examination of six Dupuytren's contracture cases.
    • Utilized light, electron, and polarizing microscopy techniques.
    • Analyzed microvessels in the precontracture band and nodule periphery.

    Main Results:

    • Observed pervasive microvascular occlusion in Dupuytren's contracture nodules.
    • Microvessels were occluded by bulging endothelial cells and surrounded by thickened basal laminae.
    • Nodules were found to be essentially avascular.

    Conclusions:

    • Dupuytren's contracture exhibits pervasive microvascular occlusion, similar to other fibrotic lesions.
    • This finding supports a potential underlying biological principle in the generation of fibrotic lesions.
    • Microvascular occlusion may be a common factor in the pathogenesis of various fibrotic conditions.

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