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Regression in malignant melanoma.

H Trau, A W Kopf, D S Rigel

    Journal of the American Academy of Dermatology
    |March 1, 1983
    PubMed
    Summary
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    Histologic regression in malignant melanoma is linked to specific tumor characteristics and location. While regression may suggest slightly better survival, tumor thickness is a key factor.

    Area of Science:

    • Dermatopathology
    • Oncology

    Background:

    • Malignant melanoma is a significant skin cancer.
    • Histologic regression is a recognized feature in melanoma.
    • Understanding factors associated with regression is crucial for prognosis.

    Purpose of the Study:

    • To identify clinical and pathological factors associated with histologic regression in malignant melanoma.
    • To explore the prognostic significance of histologic regression in melanoma patients.

    Main Methods:

    • Multiple stepwise logistic regression analysis was employed.
    • Clinical and histopathological data from melanoma cases were analyzed.

    Main Results:

    • Histologic regression was more common in melanomas that were level III or less, >10 mm in diameter, associated with solar elastosis, and located outside the head/neck.

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  • Clinical observation of whiteness also correlated with regression.
  • Patients with regression showed slightly better 5-year disease-free survival, potentially due to differences in tumor thickness.

    • Conclusions:

    • Histologic regression in malignant melanoma is associated with specific tumor features and clinical presentation.
    • While regression may indicate a slightly better prognosis, tumor thickness remains a critical determinant of outcome.