Endosonographic Findings and the Natural Course of Chronic Gastric Anisakiasis: A Single-Center Experience
Joint Authors
Kim, Gwang Ha
Park, Do Youn
Lee, Bong Eun
Park, Eun Young
Baek, Dong Hoon
Lee, So-Jeong
Source
Gastroenterology Research and Practice
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-09-20
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Background.
Chronic gastric anisakiasis is a rare, usually asymptomatic, and difficult to diagnose infection incidentally discovered during endoscopy, resembling a subepithelial tumor (SET).
Because its endoscopic ultrasonography (EUS) findings are not established, it is occasionally misdiagnosed as gastrointestinal mesenchymal tumors and removed by endoscopic or surgical resection.
We aimed to assess the characteristic EUS findings of chronic gastric anisakiasis and the clinical course during follow-up.
Methods.
The database of all patients who underwent EUS at Pusan National University Hospital (Busan, Korea) between January 2011 and December 2016 was retrospectively analyzed.
A total of 28 SET cases with EUS features suggesting chronic gastric anisakiasis were included in the study.
The EUS, histopathologic, and follow-up endoscopic features were analyzed.
Results.
On EUS, the lesions were mainly located in the submucosal and/or propria muscle layers.
Twenty-seven lesions (27/28, 96%) showed hypoechoic echogenicity, and 22 lesions (22/28, 79%) were heterogeneous.
Hyperechoic tubular structures suggesting denaturalized Anisakidae larvae were seen in 22 lesions (22/28, 79%).
Endoscopic biopsies revealed significant eosinophil infiltration (≥30 per high-power field) in 12 lesions (12/21, 57%).
During the median follow-up period of 9 months (range, 1–55 months), SETs decreased or subsided in 26 lesions (26/28, 93%) with no change in the size of the two lesions (2/28, 7%).
Conclusions.
Chronic gastric anisakiasis, although rare, should be included in the differential diagnoses for gastric SETs, especially in regions where raw fish is widely consumed.
EUS findings suggesting chronic gastric anisakiasis are heterogeneously hypoechoic lesions with hyperechoic tubular structures, mainly in the submucosal and/or muscularis propria layers.
Because chronic gastric anisakiasis decreases or subsides in most cases, follow-up endoscopy 6–12 months later is recommended.
American Psychological Association (APA)
Park, Eun Young& Baek, Dong Hoon& Kim, Gwang Ha& Lee, Bong Eun& Lee, So-Jeong& Park, Do Youn. 2018. Endosonographic Findings and the Natural Course of Chronic Gastric Anisakiasis: A Single-Center Experience. Gastroenterology Research and Practice،Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1165708
Modern Language Association (MLA)
Park, Eun Young…[et al.]. Endosonographic Findings and the Natural Course of Chronic Gastric Anisakiasis: A Single-Center Experience. Gastroenterology Research and Practice No. 2018 (2018), pp.1-7.
https://search.emarefa.net/detail/BIM-1165708
American Medical Association (AMA)
Park, Eun Young& Baek, Dong Hoon& Kim, Gwang Ha& Lee, Bong Eun& Lee, So-Jeong& Park, Do Youn. Endosonographic Findings and the Natural Course of Chronic Gastric Anisakiasis: A Single-Center Experience. Gastroenterology Research and Practice. 2018. Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1165708
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1165708