Early detection and treatment of skin changes that can progress to skin cancer.
Lentigo maligna is an early, in-situ form of melanoma that develops slowly on chronically sun-damaged skin, most often on the face in older adults. It typically appears as a large, flat, unevenly colored brown or black patch that grows gradually over years.
Cumulative, long-term UV exposure damages pigment-producing cells, most often in fair-skinned individuals with a history of significant sun exposure.
Lifelong sun protection is the most effective preventive measure, along with regular skin checks in older adults.
Surgical excision is the standard treatment; topical or radiation therapy may be used in select cases where surgery isn't appropriate.
Myth: A large brown patch that's been there for years and grows slowly can't be dangerous. Fact: Lentigo maligna often grows slowly for years before it's diagnosed, which is exactly why any changing or new pigmented patch deserves evaluation.
For evaluation of any new or changing pigmented patch on chronically sun-exposed skin, especially the face.