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KMID : 1103720110640020000
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Journal of the Korean Society of Radiology
2011 Volume.64 No. 2 p.0 ~ p.0
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CT Findings of Small Bowel Anisakiasis: Analysis of Four Cases
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Kim Wee-Kyoung
Song Soon-Young
Cho On-Koo
Koh Byung-Hee
Kim Yong-Soo
Jung Woo-Kyoung
Kim Min-Yeong
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Abstract
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Purpose: We wanted to describe the CT findings of small bowel anisakiasis with the pathologic correlation.
Materials and Methods: Four patients with surgically and pathologically proven small bowel anisakiasis were included in this retrospective study. They were three men and one woman and their ages ranged from 28 to 43 years (mean age: 38 years). We evaluated their clinical, CT and histological findings.
Results: All the patients had a history of ingesting raw fish within 24 hours from the time of symptom onset. They complained of abdominal pain (n=4), nausea (n=4), vomiting (n=2) and diarrhea (n=1). Physical examination revealed tenderness (n=4), rebound tenderness (n=4) and increased bowel sounds (n=3). Leukocytosis was noted in all the patients on the laboratory examination. None of the patients showed eosinophilia. The CT findings were segmental small bowel wall thickening with preserved layering (n=4), focal segmental luminal narrowing with proximal dilatation (n=4), peritoneal thickening (n=3), mesenteric or omental infiltration (n=4) and varying degrees of ascites (n=4). On the histopathologic examination, they revealed an infiltration of eosinophils (n=4) in all layers of the bowel wall with severe edema. The larvae were found on surgico-pathologic examination in all the cases.
Conslusion: The CT findings may be helpful to make the specific diagnosis of small bowel anisakiasis in a patient with the clinical findings of an acute abdomen and a history of eating raw fish.
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KEYWORD
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Anisakiasis, Tomography, X-Ray Computed, Intestinal Diseases, Parasitic infection
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