英语词汇“donut sign”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	donut sign
释义	donut sign donut sign , doughnut signOne of several radiologic findings in which a halo surrounding an apparently empty space is present. It is seen, e.g., (a) on chest x-rays of hilar lymphadenopathy, when lymph nodes surround a bronchus; (b) in abdominal imaging, when a thickened bowel wall surrounds the intestinal lumen or an intussusception; and (c) in bone scans, when a rim of tracer uptake surrounds a "cold" center.
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