منابع مشابه
Bilateral Symmetrical Sectoral Pigmentary Lesion of the Retina.
Case Report A man aged 28 years was referred to me on March 7, 1962. He had recently been refracted by his optician who noted pigmentary changes in both fundi. He had worn glasses since 1952. He had never noticed any defect in his corrected vision and had not experienced any difficulty in dim light. There was no family history of eye trouble and no consanguinity in his parents. His general heal...
متن کامل[Disseminated nodulo-squamous syphilide].
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متن کاملPigmentary Disorders
Many factors have been implicated for the etiology of melasma, but the exact cause of this hypermelanosis is poorly understood. However, it is considered to result from solar radiation and genetic predisposition. Moreover, pregnancy, oral contraception and hormone replacement therapy with natural and synthetic oestrogens, have been involved in the pathogenesis of this hypemelanosis. Despite the...
متن کاملPigmentary dispersion.
A long-term study of primary pigmentary dispersion has shown that the condition is commoner in males than females and appears most frequently in the third decade. After 10 years there may be a significant reduction in the amount of pigment deposited on the cornea, and the condition of several patients receiving treatment for glaucoma has remained under control when treatment has been stopped.
متن کاملGenetics of pigmentary disorders.
The genetic and molecular bases of various types of congenital pigmentary disorders have been classified in the past 10 years, as follows: (1) disorders of melanoblast migration in the embryo from the neural crest to the skin: piebaldism; Waardenburg syndrome 1-4 (WS1-WS4); dyschromatosis symmetrica hereditaria. (2) Disorders of melanosome formation in the melanocyte: Hermansky-Pudlak syndrome ...
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ژورنال
عنوان ژورنال: Proceedings of the Royal Society of Medicine
سال: 1936
ISSN: 0035-9157
DOI: 10.1177/003591573602901222