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June 1967


Author Affiliations

Department of Dermatology Osaka City University Medical School 1-61, Asahi, Abeno Osaka, Japan

Arch Dermatol. 1967;95(6):665. doi:10.1001/archderm.1967.01600360111025

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To the Editor.—  We have a feeling that "Idiopathic Guttate Hypomelanosis" of Cummings and Cottel in the February 1966 issue of the Archives, is identical with senile depigmented (or hypopigmented) spots which has been well known as a distinct entity in Japan for many years. In Japanese, lesions are easily recognized without any diagnostic tool. Wood's lamp, as reported by Whitehead et al (Arch Derm94:279-281, 1966), is not necessary for diagnosis. Thus, it would be valuable to introduce our clinical study on this disease published in the Dermatologica et Urologica (20:1123-1131, 1966 [in Japanese]).Of the 312 Japanese men and 279 women examined, incidence of senile depigmented spots was found to be about 6% in the examined subjects in their 20's and about 70% in those in their 50's. The older the person the more lesions he had. Predilection of disease was in the covered areas,

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