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Related Experiment Videos

The adenoma-carcinoma sequence.

D W Day, B C Morson

    Major Problems in Pathology
    |January 1, 1978
    PubMed
    Summary
    This summary is machine-generated.

    Most large bowel cancers begin as adenomas, a process taking 10-15 years. Statistical analysis reveals adenoma size, growth, and atypia influence cancer risk, helping explain the rarity of this adenoma-carcinoma sequence.

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    Histopathology·2002

    Area of Science:

    • Gastroenterology
    • Oncology
    • Pathology

    Background:

    • Most colorectal carcinomas arise from adenomas.
    • The adenoma-carcinoma sequence is a recognized pathway in colorectal cancer development.
    • The transition from adenoma to carcinoma is statistically uncommon despite the high prevalence of adenomas.

    Purpose of the Study:

    • To investigate the factors influencing the adenoma-carcinoma sequence.
    • To resolve the disparity between adenoma and carcinoma distribution in published series.
    • To statistically analyze the malignant potential of adenomas based on specific criteria.

    Main Methods:

    • Statistical analysis of adenoma characteristics.
    • Evaluation of adenoma size, growth pattern, and epithelial atypia.

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  • Comparison of adenoma and carcinoma distribution across different colorectal sites.

    • Main Results:

    • The malignant potential of adenomas is statistically linked to their size, growth pattern, and degree of epithelial atypia.
    • These criteria can help explain the infrequent transition from adenoma to carcinoma.
    • Disparities in published series regarding adenoma and carcinoma distribution may be resolved by studying these factors.

    Conclusions:

    • Adenoma size, growth pattern, and atypia are key determinants of malignant potential.
    • Understanding these factors is crucial for resolving the apparent rarity of the adenoma-carcinoma sequence.
    • Further study of these criteria across different colorectal sites is warranted.