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Japanese

A Case of Malignant Melanoma with Orbital Metastasis which Caused the First Symptoms Hidenori Toyoda 1 , Kazuhiro Fukui 1 , Hideaki Okabe 1 , Akira Kitoh 1 , Ikuzou Iguchi 1 , Isao Kanematsu 2 1Department of Neurosurgery, Ogaki Municipal Hospital 2Department of Dermatology, Ogaki Municipal Hospital Keyword: malignant melanoma , metastasis to the orbita pp.929-933
Published Date 1992/10/1
DOI https://doi.org/10.11477/mf.1406900395
  • Abstract
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A thirty-four-year-old man was admitted to our hospital because of the disturbed visual acuity and pain on the eye movement of the right eye. He had prominent right eye and CT-scan and MRI of the brain disclosed a tumor which could be obviously distinguished from the extraocular muscles, optic nerve and the bulb of eye in the retrobulbar region. On operation we identified dark-red solid tumor which was 3.0cm in diameter, and diagnosed it malignant melanoma pathologically. Because pos-toperative study detected amelanotic melanoma in the white patch on the right upper extremety, this right orbital tumor was considered to be the metas-tasis of it from the right upper extremety. Metas-tatic malignant melanoma of the skin to the orbit is very rare, while most of the eye-associated malig-nant melanoma originates from uveal tract, especial choroid, and conjuctiva. This case was the 26th case of these in the world and the first case in Japan, furthermore the 4th case in the world whose first symptoms were caused by the orbital metastasis.


Copyright © 1992, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 2185-405X 印刷版ISSN 0006-8969 医学書院

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