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Related Concept Videos

Skin Cancer01:30

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Dermoscopy Aids in the Diagnosis of Discoid Lupus Erythematosus
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Lentigo maligna: a review.

Dimitrios Karponis1, Ioannis A Stratigos2, Jilse Joshy1,2

  • 1Department of Dermatology, Norfolk and Norwich University Hospital, Norwich, UK.

Clinical and Experimental Dermatology
|November 15, 2023
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Summary
This summary is machine-generated.

Lentigo maligna (LM), a melanoma in situ, primarily affects older men and is linked to sun exposure. While incidence data is limited, management strategies are evolving, offering excellent survival rates.

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Area of Science:

  • Dermatology and Oncology
  • Epidemiology of Skin Cancers

Background:

  • Lentigo maligna (LM) is a type of melanoma in situ predominantly affecting older men, with increasing incidence rates globally, though data remains suboptimal.
  • Key risk factors include fair skin and cumulative sun exposure, with LM potentially progressing to invasive melanoma.
  • Diagnosis and management present challenges due to its varied presentation and potential for recurrence after treatment.

Approach:

  • This review synthesizes current knowledge on the natural history, epidemiology, etiology, pathogenesis, diagnosis, and management of LM.
  • Utilizes clinical, dermoscopic, histopathological, and reflectance confocal microscopy findings for diagnostic insights.
  • Examines various treatment modalities including surgical excision, Mohs micrographic surgery, topical imiquimod, and conservative approaches.

Key Points:

  • LM incidence is rising, particularly in older populations, contrasting with younger demographics for other melanomas.
  • Histopathology remains the gold standard for diagnosis, though advanced imaging aids in understanding lesion complexity and margins.
  • Treatment options vary, with surgery and topical therapies showing potential but recurrence remains a concern.

Conclusions:

  • Despite diagnostic and management challenges, Lentigo Maligna has excellent five-year net survival rates.
  • Further epidemiological research is needed to accurately track incidence and progression rates.
  • Optimal management requires a multidisciplinary approach, considering patient factors and treatment outcomes.