Colonic polyps with Ascaris Lumbricoides eggs

Background: Ascariasis, caused by Ascaris lumbricoides, is a common parasitic infection predominantly affecting children and adolescents in developing countries.Clinical manifestations range from asymptomatic cases to complications such as cholangitis and pancreatitis. Despite the prevalence of asca...

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Main Authors: Qinglong Ye, Yizhen Xu, Jing Chen, Ning Wang, Binwen Wu, Xiuling Zhou
Format: Article
Language:English
Published: Elsevier 2025-01-01
Series:IDCases
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Online Access:http://www.sciencedirect.com/science/article/pii/S2214250925000654
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author Qinglong Ye
Yizhen Xu
Jing Chen
Ning Wang
Binwen Wu
Xiuling Zhou
author_facet Qinglong Ye
Yizhen Xu
Jing Chen
Ning Wang
Binwen Wu
Xiuling Zhou
author_sort Qinglong Ye
collection DOAJ
description Background: Ascariasis, caused by Ascaris lumbricoides, is a common parasitic infection predominantly affecting children and adolescents in developing countries.Clinical manifestations range from asymptomatic cases to complications such as cholangitis and pancreatitis. Despite the prevalence of ascariasis, atypical presentations in adults are rare and pose diagnostic challenges. Case summary: This case report describes an unusual presentation of ascariasis in a 41-year-old male, with nonspecific gastrointestinal symptoms: abdominal pain, bloating, heartburn, and alternating diarrhea and constipation, which led to a misdiagnosis of chronic gastritis initially. Finally, multiple colon polyps were detected by colonoscopy. Histopathological examination of the polyps unexpectedly revealed Ascaris eggs, leading to the final diagnosis of ascariasis. Conclusion: This case highlight the importance of considering parasitic infections in patients with atypical gastrointestinal symptoms, even in the absence of typical risk factors. The incidental finding of Ascaris eggs within a colonic polyp is exceedingly rare, highlighting the need for thorough diagnostic evaluation in persistent, unexplained cases. This report contributes to the expanding knowledge of ascariasis presentation and diagnosis.
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publisher Elsevier
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series IDCases
spelling doaj-art-e39d5df0478c44d58be5e648456dabf02025-08-20T02:31:11ZengElsevierIDCases2214-25092025-01-0140e0221010.1016/j.idcr.2025.e02210Colonic polyps with Ascaris Lumbricoides eggsQinglong Ye0Yizhen Xu1Jing Chen2Ning Wang3Binwen Wu4Xiuling Zhou5Department of Gastroenterology, Guangdong Provincial People's Hospital, Zhuhai Hospital (Jinwan Central Hospital of Zhuhai), Zhuhai, Guangdong 519000, ChinaDepartment of Gastroenterology, Guangdong Provincial People's Hospital, Zhuhai Hospital (Jinwan Central Hospital of Zhuhai), Zhuhai, Guangdong 519000, ChinaDepartment of Gastroenterology, Guangdong Provincial People's Hospital, Zhuhai Hospital (Jinwan Central Hospital of Zhuhai), Zhuhai, Guangdong 519000, ChinaDepartment of Gastroenterology, Guangdong Provincial People's Hospital, Zhuhai Hospital (Jinwan Central Hospital of Zhuhai), Zhuhai, Guangdong 519000, ChinaDepartment of Gastroenterology, Guangdong Provincial People's Hospital, Zhuhai Hospital (Jinwan Central Hospital of Zhuhai), Zhuhai, Guangdong 519000, ChinaDepartment of Internal Medicine, Guangdong Provincial People's Hospital, Zhuhai Hospital (Jinwan Central Hospital of Zhuhai), Zhuhai, Guangdong 519000, China; Corresponding author.Background: Ascariasis, caused by Ascaris lumbricoides, is a common parasitic infection predominantly affecting children and adolescents in developing countries.Clinical manifestations range from asymptomatic cases to complications such as cholangitis and pancreatitis. Despite the prevalence of ascariasis, atypical presentations in adults are rare and pose diagnostic challenges. Case summary: This case report describes an unusual presentation of ascariasis in a 41-year-old male, with nonspecific gastrointestinal symptoms: abdominal pain, bloating, heartburn, and alternating diarrhea and constipation, which led to a misdiagnosis of chronic gastritis initially. Finally, multiple colon polyps were detected by colonoscopy. Histopathological examination of the polyps unexpectedly revealed Ascaris eggs, leading to the final diagnosis of ascariasis. Conclusion: This case highlight the importance of considering parasitic infections in patients with atypical gastrointestinal symptoms, even in the absence of typical risk factors. The incidental finding of Ascaris eggs within a colonic polyp is exceedingly rare, highlighting the need for thorough diagnostic evaluation in persistent, unexplained cases. This report contributes to the expanding knowledge of ascariasis presentation and diagnosis.http://www.sciencedirect.com/science/article/pii/S2214250925000654AscariasisAscaris Lumbricoides eggsColonic polypsParasitic infectionCase report
spellingShingle Qinglong Ye
Yizhen Xu
Jing Chen
Ning Wang
Binwen Wu
Xiuling Zhou
Colonic polyps with Ascaris Lumbricoides eggs
IDCases
Ascariasis
Ascaris Lumbricoides eggs
Colonic polyps
Parasitic infection
Case report
title Colonic polyps with Ascaris Lumbricoides eggs
title_full Colonic polyps with Ascaris Lumbricoides eggs
title_fullStr Colonic polyps with Ascaris Lumbricoides eggs
title_full_unstemmed Colonic polyps with Ascaris Lumbricoides eggs
title_short Colonic polyps with Ascaris Lumbricoides eggs
title_sort colonic polyps with ascaris lumbricoides eggs
topic Ascariasis
Ascaris Lumbricoides eggs
Colonic polyps
Parasitic infection
Case report
url http://www.sciencedirect.com/science/article/pii/S2214250925000654
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AT jingchen colonicpolypswithascarislumbricoideseggs
AT ningwang colonicpolypswithascarislumbricoideseggs
AT binwenwu colonicpolypswithascarislumbricoideseggs
AT xiulingzhou colonicpolypswithascarislumbricoideseggs