File:Ascaris infection in the x-ray image- ascaris arranged tidily along the long axis of the small bowel (South Africa) (16424840021).jpg
Ascaris_infection_in_the_x-ray_image-_ascaris_arranged_tidily_along_the_long_axis_of_the_small_bowel_(South_Africa)_(16424840021).jpg (383 × 442像素,文件大小:20 KB,MIME类型:image/jpeg)
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[编辑]描述Ascaris infection in the x-ray image- ascaris arranged tidily along the long axis of the small bowel (South Africa) (16424840021).jpg |
English: Low radioactive barium is swallowed as contrast medium for the X-ray film. The contrast medium (barium) here shows the small bowel. The worms are the black lines within the contrast. In this case they are all arranged tidily in the long axis of the bowel. This might be the reason why they do not cause any obstruction despite such large numbers.
Long axis means that the worms are all lined up facing the same way...up the bowel, not across it. If some worms were lying crossways and some lying in the long axis and others just lying higgledy-piggledy then they would form what we call a "bolus" and that is the basis for bowel obstruction by ascaris. If they all line up like soldiers on parade then food can pass between them or around them and no obstruction occurs. The "Barium meal" is an X-ray technique where the patient swallows a metallic-based fluid (Barium is the metal) which shows up as white on an X-ray film. The radiologist can watch what happens as this fluid is swallowed and as it goes on down through the stomach and small intestine. Photo by Larry Hadley, South Africa <a href="http://paedsurg.ukzn.ac.za/Staff/ProfLarryHadley.aspx" rel="nofollow">paedsurg.ukzn.ac.za/Staff/ProfLarryHadley.aspx</a> |
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来源 | https://www.flickr.com/photos/gtzecosan/16424840021/ | |||
作者 | SuSanA Secretariat | |||
授权 (二次使用本文件) |
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Flickr sets InfoField | Worldwide - Clinical photos of helminth infections | |||
Flickr tags InfoField | Ascaris; ascariasis; helminth; helminthiasis; worm infection |
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这幅图片原始出处为Flickr的https://www.flickr.com/photos/23116228@N07/16424840021 ,作者为Sustainable sanitation 。经机器人FlickreviewR在2015年2月5日审查后确定为采用cc-by-2.0的协议授权使用。 |
2015年2月5日
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当前 | 2015年3月15日 (日) 20:54 | ![]() | 383 × 442(20 KB) | Doc James(留言 | 贡献) | cropped |
2015年2月5日 (四) 14:01 | ![]() | 383 × 577(16 KB) | Fæ(留言 | 贡献) | == {{int:filedesc}} == {{information |description={{en|1=Low radioactive barium is swallowed as contrast medium for the X-ray film. The contrast medium (barium) here shows the small bowel. The worms are the black lines within the contrast. In this cas... |
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