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ALBINISM AND ALBINOIDISM Toshio HAMADA 1 , Tadao SAITO 1 1Department of Dermatology, Osaka City University Medical School pp.1153-1161
Published Date 1967/11/1
DOI https://doi.org/10.11477/mf.1412200238
  • Abstract
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Clinical and histological studies were done in two sisters (37-and 33-year-old) with albinism and in 3 patients with albinoidism (26-year-old female 9-year-old boy and 20-year-old male), to establish differential features of the both entities.

In albinism, the color of the skin and hair were white, and no pigmentation was observed on the mamillae. The iris was reddish, and the ocular fundus was translucent, where the blood vessels were visible more clearly. A few pigmented spots of 1 to 2 mm. in diameter appeared following irradiation of the skin with the ultraviolet light. No melanin granules could be seen in the whole skin except for the pigmented spots. In the younger sister of albinism, a few dopa-positive melanocytes were found at the basal layer of the abdominal skin.

In albinoidism, on the other hand, a little more pigmentation of the skin was found over the whole body than in albinism. The color of the skin in albinoidism was not so white as in albinism, the color of hair was brown or brownish black, and that of the mamillae was faint. The ocular fundus was more translucent than the normal, and the blood vessels of choroid were visible faintly. Patterned dopa-positive melanocytes were observed at the basal layer of the epidermis. If a Japanese subject were halfblooded with a Caucasian, the discernment with albinoidism would be difficult.


Copyright © 1967, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1324 印刷版ISSN 0021-4973 医学書院

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