Disease encyclopedia/Skin, hair & nails
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    Skin, hair & nailsCancerICD-10 C43

    Melanoma

    A serious skin cancer arising from pigment cells. Found early it is usually cured by surgery; advanced melanoma has been transformed by immunotherapy.

    Condition-specific references are below. Individual claims and this page have not been clinically reviewed. Read about this content.

    Affected: Skin (melanocytes)

    Causes

    • UV-induced DNA damage (BRAF, NRAS mutations)

    Risk factors

    • Sunburn, especially in childhood
    • Sunbed use
    • Fair skin, red hair, freckles
    • Many or atypical moles
    • Family history
    • Immunosuppression

    Symptoms

    • New or changing mole — ABCDE: Asymmetry, irregular Border, uneven Colour, Diameter over 6 mm, Evolving
    • Itching or bleeding mole
    • Dark streak under a nail

    Diagnosis — tests and examinations

    • Dermoscopy
    • Excision biopsy
    • Sentinel lymph node biopsy and scans for staging

    Treatment

    Medicines and medical treatment

    • Immunotherapy (nivolumab, pembrolizumab, ipilimumab)
    • Targeted therapy for BRAF-mutant melanoma (dabrafenib + trametinib)
    • Adjuvant therapy after surgery for higher-risk disease

    Operations and procedures

    • Wide local excision
    • Lymph node surgery

    Self-care, home remedies and lifestyle

    • Monthly skin self-checks
    • Sun protection

    Possible complications

    • Spread to lymph nodes, lungs, liver, brain

    Prevention

    • Avoid sunburn and sunbeds, use SPF 30+, protective clothing, shade

    Outlook

    Over 95% five-year survival for thin early melanomas.

    When to see a doctor

    See a doctor promptly for a new, changing, itching or bleeding mole.

    Sources and further reading

    These sources cover this condition. They have not been checked against every statement on this page.

    • Melanoma — MedlinePlus (U.S. National Library of Medicine)

    Related conditions

    VitiligoAtopic eczema (dermatitis)PsoriasisBasal cell carcinomaAcne vulgarisCellulitis

    Educational overview, not medical advice. Treatment varies by person and location. Consult a qualified health professional for diagnosis or care. Read our content and model notes and privacy information.

    Affected: Skin (melanocytes)

    See it in 3-D

    Skin

    Anatomy

    • Skin

    On this page

    • Causes
    • Risk factors
    • Symptoms
    • Diagnosis — tests and examinations
    • Treatment
    • Complications
    • Prevention
    • Outlook
    • When to see a doctor
    • Sources