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Updated: Apr 28, 2026

Quantitation of Protein Expression and Co-localization Using Multiplexed Immuno-histochemical Staining and Multispectral Imaging
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Focal prostatic atrophy: morphologic classification and immunohistochemistry.

Athanase Billis, Ana C S Piaza, Luciana Meirelles

    Analytical and Quantitative Cytopathology and Histopathology
    |June 7, 2014
    PubMed
    Summary
    This summary is machine-generated.

    Focal prostatic atrophy exhibits a morphologic continuum, with chronic inflammation appearing secondary to complete atrophy. Immunohistochemistry aids in identifying these lesions and understanding their potential role in carcinogenesis.

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    Area of Science:

    • Uropathology
    • Histopathology
    • Prostate Cancer Research

    Background:

    • Focal prostatic atrophy is a common finding.
    • A standardized classification is needed for accurate diagnosis.
    • Its relationship with inflammation and carcinogenesis is not fully understood.

    Purpose of the Study:

    • To describe the morphology of focal prostatic atrophy.
    • To propose a comprehensive histologic classification.
    • To investigate its pathogenesis using immunohistochemistry.

    Main Methods:

    • Analysis of needle biopsy specimens.
    • Comprehensive immunohistochemical staining.
    • Evaluation of specific markers like 34betaE12, ERG, glutathione S-transferase pi, c-Met, and CD44.

    Main Results:

    • A morphologic continuum of prostatic atrophy was observed.
    • Chronic inflammation was exclusively found in complete atrophy.
    • ERG negativity is a potential marker for identifying atrophy.
    • Aberrant expression of 34betaE12 in complete atrophy suggests an intermediate phenotype.

    Conclusions:

    • Prostatic atrophy likely represents a continuum preceding complete atrophy.
    • Chronic inflammation may be a secondary event in complete atrophy.
    • Immunohistochemical findings suggest oxidative stress, potential carcinogenesis targets, and inflammatory cell recruitment in atrophy.