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A case of amyloidosis of the orbit Huaqing Gong 1 , Noritake Miyamura 1 , Tsugio Amemiya 1 1Dept of Ophthalmol, Nagasaki Univ Sch of Med pp.1373-1377
Published Date 1996/7/15
DOI https://doi.org/10.11477/mf.1410904998
  • Abstract
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A 72-year-old woman presented with ptosis of the left eyelid. An elastic hard mass was palpable in the left orbit. Computed tomography (CT) and magnetic resonance imaging (MRI) showed a space-occupying lesion in the left orbit with high density on CT and high signal intensity on T1-weighted MRI. Histopathological studies showed amorphous material which stained slightly purple by hematoxylin eosin and positive by Congo red staining. Electron microscopy showed amyloid fibrils in the endothelium and adjacent areas of capillaries. Amyloid fibrils appeared to be going through the cytoplasmic membrane of the endothelium, suggesting the endothelium to be the site of origin of amyloid fibrils. Systemic studies showed no remarkable findings. The patient was diagnosed as localized amyloidosis of the orbit.


Copyright © 1996, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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