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Updated: Jul 1, 2026

Human Colonoid Monolayers to Study Interactions Between Pathogens, Commensals, and Host Intestinal Epithelium
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Subepithelial collagen in intestinal malabsorption.

R Bossart, K Henry, C C Booth

    Gut
    |January 1, 1975
    PubMed
    Summary
    This summary is machine-generated.

    Subepithelial collagen deposits are common in adult coeliac disease biopsies but are not specific. Marked collagen deposition may suggest a poorer prognosis, but its presence in flat jejunal biopsies does not indicate a distinct clinical condition.

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    Area of Science:

    • Gastroenterology
    • Histopathology
    • Immunology

    Background:

    • Subepithelial collagen deposition is observed in various gastrointestinal conditions.
    • Its significance in adult coeliac disease (ACD) requires further clarification.

    Purpose of the Study:

    • To investigate the prevalence and prognostic value of subepithelial collagen in intestinal biopsies.
    • To determine if marked subepithelial collagen in flat jejunal biopsies defines a separate clinical entity.

    Main Methods:

    • Analysis of intestinal biopsies from 146 patients with ACD, 13 with other causes of villous atrophy, and 20 controls.
    • Histopathological assessment for subepithelial collagen presence and degree of deposition.

    Main Results:

    • Subepithelial collagen was a common finding (36%) in ACD and tropical sprue, indicating it is non-specific.
    • Subepithelial changes typically resolve with treatment in ACD, but significant deposition may correlate with a poor prognosis.
    • Marked subepithelial collagen in flat jejunal biopsies did not identify a distinct clinical entity.

    Conclusions:

    • Subepithelial collagen is a non-specific finding in adult coeliac disease.
    • While regression occurs with treatment, extensive deposition may indicate a worse prognosis.
    • The presence of marked subepithelial collagen in flat jejunal biopsies does not constitute a separate clinical entity.