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30.04.2018 | Original Article | Ausgabe 7/2018

Lasers in Medical Science 7/2018

Comparative study using fractional carbon dioxide laser versus glycolic acid peel in treatment of pseudo-acanthosis nigricans

Lasers in Medical Science > Ausgabe 7/2018
N. S. Zaki, R. F. Hilal, R. M. Essam
Wichtige Hinweise
A correction to this article is available online at https://​doi.​org/​10.​1007/​s10103-018-2596-4.
A correction to this article is available online at https://​doi.​org/​10.​1007/​s10103-018-02714-z.


Pseudo-acanthosis nigricans is a common dermatological disorder that is usually difficult to treat secondary to maceration of the skin from excessive sweating, obesity, or associated with endocrine disorders. Fractional photothermolysis and chemical peeling have been reported to improve the condition. To determine whether fractional CO2 laser resurfacing or glycolic acid peel is more effective and safe option for therapy. Twenty Egyptian patients were included in the study where each patient was subjected to three sessions of both fractional CO2 on the right side of the neck and glycolic acid peel 70% on the left side of the neck. All patients were evaluated by a scoring system Acanthosis Nigricans Area and Severity Index (ANASI) score and three blinded dermatologists before and after treatment. Clinical improvement on the side treated by glycolic acid peel showed 43% improvement while the side treated by fractional CO2 showed 19% improvement. Glycolic acid peel shows superior results to fractional CO2 due to accelerated induced exfoliation, yet still fractional CO2 results are promising due to a presumably long-term improvement of skin texture.

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