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Plastic Cryosurgery: Cryosurgery and its Cosmetic Effect

Biological Mechanism of Liquid Nitrogen Cryotherapy for Nevus Ota and its Clinical Advantages
  • Yoshiaki Hosaka

Abstract

Nevus Ota is a congenital or acquired facial dermal melanosis that is rather rare in Caucasians but is observed frequently in Mongolian races (Kukita et al. 1981, Yamauchi et al. 1981). The pigmentation is usually unilateral and most pronounced on the eyelids and in the zygomatic and maxillary regions. It is composed of light brownish-blue to deep purplish-blue macules caused by an abnormal occurrence of melanocytes within the connective tissue. In Japan, this disorder is estimated to affect approximately 0.4 percent of the dermatology outpatient population (Yoshida 1952) and 2.6 percent of plastic surgery outpatients (Suzuki 1991). The ratio of male to female patients is reported to be approximately 1:3 (Kukita et al. 1981, Suzuki 1991).

Keywords

Melanin Granule Cosmetic Effect Maxillary Region Periocular Region Zygomatic Region 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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© Springer-Verlag Wien 2001

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  • Yoshiaki Hosaka

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