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Related Experiment Videos

Histogenesis of dermatofibrosarcoma protuberans. An ultrastructural study.

A Alguacil-Garcia, K K Unni, J R Goellner

    American Journal of Clinical Pathology
    |April 1, 1978
    PubMed
    Summary

    Dermatofibroma protuberans (DFSP) originates from primitive fibroblasts with sheath-forming cell differentiation. Ultrastructural analysis suggests a closer relationship to perineural cells than pericytes.

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    Area of Science:

    • Dermatopathology
    • Cell Biology
    • Oncology

    Background:

    • Dermatofibroma protuberans (DFSP) is a rare skin tumor.
    • Its precise cellular origin remains debated.
    • Understanding DFSP's ultrastructure is key to its classification.

    Purpose of the Study:

    • To investigate the ultrastructural characteristics of DFSP.
    • To determine the cell of origin for DFSP.
    • To compare DFSP cells with other cell types like pericytes and perineural cells.

    Main Methods:

    • Ultrastructural analysis of five typical DFSP lesions.
    • Detailed examination of cellular morphology and organelle distribution.
    • Comparative analysis with known cell types.

    Main Results:

    • DFSP cells are fusiform with indented nuclei and abundant organelles.
    • Presence of basal lamina fragments, intercellular junctions, and fibers.
    • Tumor cells exhibit resemblance to pericytes and perineural cells.
    • Marked ultrastructural similarities to neurofibroma were observed.

    Conclusions:

    • DFSP arises from primitive fibroblasts with sheath-forming cell differentiation.
    • The cell of origin shows a stronger relationship to perineural cells than pericytes.
    • This finding refines the understanding of DFSP's histogenesis.

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