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Related Experiment Videos

Inverted hyperplastic polyps of the colon.

L H Sobin

    The American Journal of Surgical Pathology
    |April 1, 1985
    PubMed
    Summary
    This summary is machine-generated.

    An unusual colon polyp with endophytic growth can mimic cancer. These hyperplastic polyps are more common in women and on the right side of the colon.

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    Area of Science:

    • Gastroenterology
    • Pathology
    • Colorectal Cancer Research

    Background:

    • Hyperplastic polyps are common colorectal lesions.
    • Endophytic growth patterns in polyps can be diagnostically challenging.
    • Distinguishing benign from malignant colorectal lesions is critical for patient management.

    Purpose of the Study:

    • To describe an unusual variant of hyperplastic polyp with endophytic growth.
    • To highlight the potential for misdiagnosis of this polyp type as adenoma or carcinoma.
    • To differentiate the clinical features of this endophytic variant from typical exophytic hyperplastic polyps.

    Main Methods:

    • Histopathological examination of colorectal polyps.
    • Analysis of polyp growth patterns (endophytic vs. exophytic).

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  • Correlation of lesion characteristics with clinical presentation and patient demographics.

    • Main Results:

    • A distinct form of hyperplastic polyp exhibiting endophytic growth was identified.
    • Endophytic growth can lead to penetration of the muscularis mucosae, mimicking invasive disease.
    • These polyps show a complex epithelial growth pattern.
    • Endophytic hyperplastic polyps are more frequently found in the right colon compared to the left.
    • This polyp variant is relatively more common in women.

    Conclusions:

    • An unusual endophytic hyperplastic polyp variant poses a diagnostic challenge due to its growth pattern.
    • Awareness of this variant is crucial to avoid misclassification as adenoma or carcinoma.
    • Clinical presentation (right-sided prevalence, female predominance) aids in differentiating these polyps.