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Related Experiment Videos

"Catalyst" symptoms in malignant melanoma.

B R Cassileth, E J Lusk, D Guerry

    Journal of General Internal Medicine
    |January 1, 1987
    PubMed
    Summary

    Patients often delay seeking medical care for early melanoma, even when symptoms like bleeding, ulceration, or itching are present. This delay is linked to thicker melanoma lesions, increasing mortality risks.

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    The changing nature of adolescence in the Kassena-Nankana District of northern Ghana.

    Studies in family planning·2006

    Area of Science:

    • Dermatology
    • Oncology
    • Medical Diagnostics

    Background:

    • Melanoma mortality rates are increasing despite advances in early detection and treatment.
    • Superficial spreading melanoma is a common type, and understanding diagnostic delays is crucial.

    Purpose of the Study:

    • To investigate the relationship between specific patient-reported symptoms (catalyst symptoms), duration of symptoms, and the thickness of superficial spreading melanoma lesions.
    • To identify patterns in patient response to early melanoma signs and symptoms.

    Main Methods:

    • Retrospective analysis of 568 patient charts treated for superficial spreading melanoma over ten years.
    • Categorization and analysis of 75 different catalyst symptoms or symptom combinations preceding diagnosis.
    • Correlation of symptom type and duration with lesion thickness (Breslow depth).

    Main Results:

    • Bleeding, while prompting quick medical attention, was associated with the thickest lesions (mean 1.77 mm).
    • Ulceration, itching, and tenderness led to diagnostic delays of several months, with intermediate lesion thickness (1.13–1.28 mm).
    • Changes in size, color, or elevation resulted in diagnosis after an average of one year, with mean lesion thickness of 0.80–1.33 mm.

    Conclusions:

    • Patients exhibit slow reaction times to early melanoma signs and symptoms.
    • The type of symptom significantly influences the delay in diagnosis and, consequently, lesion thickness.
    • Earlier recognition and medical consultation for any suspicious skin changes are critical for improving melanoma outcomes.

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