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Value of magnetic resonance imaging with Ga-DTPA in the diagnosis for intraocular tumors Kazuaki Nishino 1 , Hiroshi Maekawa 2 , Muneyasu Takeda 2 , Takashi Nakagawa 2 , Mitsuharu Tamagawa 3 , Masaaki Sato 4 , Makoto Takeda 5 1Dept of Ophthalmol, Self Defense Force Sapporo Hosp 2Dept of Ophthalmol, Sapporo Med Coll 3Dept of Radiology, Sapporo Med Coll 4Dept of Pathology, Sapporo Med Coll 5Takeda Ophthalmol Clinic pp.1785-1788
Published Date 1991/11/15
DOI https://doi.org/10.11477/mf.1410900943
  • Abstract
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We examined 7 eyes with intraocular tumor by magnetic resonance imaging (MRI) with and with-out intravenous Ga-DTPA. The series comprised 4 eyes with malignant uveal melanoma and 3 eyeswith choroidal hemangioma. T1-weighted images showed enhancement of choroidal hemangioma, remarkably in 2 and slightly in 1. They showed slight enhancement in 1 eye with malignant uveal melanoma and no enhancement in the other 3 eyes. T1-weighted images appeared, in general, as hyper-intense in malignant uveal melanomas resulting in poor or masked enhancement. Hypomelanotic malignant uveal melanoma behaved similar to choroidal hemangioma regarding T1-weighted and enhanced images.


Copyright © 1991, 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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