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21例の陳旧性網膜静脈分枝閉塞症に毛細血管性(静脈性)巨大血管瘤を認めた。この血管瘤の特徴として,明らかに毛細血管瘤より大きく(直径150〜800μm),色調は赤色,白色,オレンジ色と多彩で表面は反射のため美しい光沢をもつものが多い。また随伴所見として白色のhalo,硬性白斑(輪状網膜症),綱膜出血,浮腫,漿液性網膜剥離,硝子体出血どがあり,このため稀に視力障害の原因となる。治療として光凝固が有効の場合があった。
We observed large capillary or venous aneurysms (Schulman et al., 1981) in 21 patients with old retinal branch vein occulusion.
Morphologically, the large retinal capillary an-eurysms appeared as saccular, beading, looping or fusiform varying from 150 to 800 pm in diameter. They ranged from dark red, red, orange to white in color. The neighboring retina often demonstrated a variety of changes including small regional hem-orrhages, edema, hard exudates, circinate lesions, serous retinal detachment, or vitreous hemorrhage.
In fluorescein angiography, the large aneu-rysms stained intensively.
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