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Argon laser treatment of lentigo maligna
Abstract:
A 64-year-old man had an irregularly pigmented lentigo maligna over the bridge of his nose. Melanin readily absorbs argon light, and the superficial location of this pool of epidermal and appendageal chromophore suggested that laser therapy might permit relatively selective lesion destruction. Argon laser surgery was performed on Nov. 9, 1981, and the treated site had remained clear to the time of writing. Selected patients with pigmented lesions may respond well to argon laser radiation, but close posttreatment clinical and histologic assessment is essential.
Insights
Argon laser therapy effectively treated a patient's lentigo maligna, a pigmented skin lesion. The lesion remained clear post-treatment, suggesting potential for selective destruction of superficial pigmented growths.
Area of Science:
- Dermatology
- Oncology
- Laser Medicine
Background:
- Lentigo maligna is a slow-growing form of melanoma in situ.
- Melanin's high absorption of argon laser light presents a therapeutic opportunity.
- Superficial pigmented lesions may be amenable to selective laser destruction.
Observation:
- A 64-year-old male presented with irregularly pigmented lentigo maligna on the nose.
- The lesion's chromophore (melanin) was superficially located in the epidermis and appendages.
Findings:
- Argon laser surgery was performed on the lentigo maligna.
- The treated site remained clear of the lesion at the time of reporting.
- This suggests selective destruction of the pigmented lesion was achieved.
Implications:
- Argon laser radiation may be a viable treatment for selected pigmented lesions.
- Close clinical and histologic follow-up is crucial after laser treatment for pigmented lesions.
- Further research into laser therapy for lentigo maligna is warranted.
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