Lentigo maligna

 









Lentigo maligna is a type of skin cancer that usually appears as a slowly growing, flat, brown or black patch on sun-exposed areas, often on the face, especially in older adults. It's considered an early stage of melanoma, a more serious form of skin cancer, and it is sometimes referred to as melanoma in situ. The condition typically develops in people who have had significant sun exposure over many years.

Key Features of Lentigo Maligna:

  1. Appearance: It presents as a patch that may be irregularly shaped, with varied colors such as brown, black, or tan. The edges may be blurred.
  2. Growth: Lentigo maligna grows slowly over several years.
  3. Age Group: It's most common in people over the age of 50, especially in those with fair skin.
  4. Location: Most commonly found on sun-exposed areas like the face, neck, and arms.
  5. Risk: While lentigo maligna itself is non-invasive (confined to the epidermis), it can eventually progress into lentigo maligna melanoma, which is invasive and requires more aggressive treatment.

Treatment Options:

  • Surgical excision: The most common treatment is surgical removal, which is often done with a margin of healthy tissue to ensure the entire lesion is removed.
  • Mohs micrographic surgery: In some cases, especially if the lesion is on the face or near vital structures, Mohs surgery may be recommended, as it allows for precise removal while preserving healthy tissue.
  • Radiation therapy: Sometimes used when surgery isn't an option, though it's less common.
  • Observation: If the lesion is not growing or changing, close monitoring may be recommended in some cases.

Prevention:

  • Regular use of sunscreen to protect against UV radiation is a major preventive step.
  • Wearing protective clothing and avoiding excessive sun exposure, especially during peak hours.

If you suspect you have lentigo maligna or notice any changes in skin lesions, it's crucial to consult a dermatologist for diagnosis and proper management.

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