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In this case report, a female toddler is evaluated for passage of a pseudosegmented worm in the stool, which was later identified as <jats:italic>Moniliformis moniliformis<\/jats:italic>. She is treated with pyrantel pamoate with a resolution of worms in stool. This case report aims to expand knowledge surrounding infections by the Acanthocephala phylum and the nuances of identification and treatment.<\/jats:p>","DOI":"10.1136\/bcr-2024-263593","type":"journal-article","created":{"date-parts":[[2025,2,20]],"date-time":"2025-02-20T18:55:43Z","timestamp":1740077743000},"page":"e263593","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":2,"title":["<i>Moniliformis moniliformis<\/i> acanthocephaliasis in a paediatric patient"],"prefix":"10.1136","volume":"18","author":[{"given":"Sallie","family":"Lin","sequence":"first","affiliation":[{"name":"Emory University, Atlanta, Georgia, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6836-3241","authenticated-orcid":false,"given":"Jackie","family":"Otero","sequence":"additional","affiliation":[{"name":"Pediatrics, University of Florida College of Medicine, Gainesville, Florida, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexandra","family":"Stern","sequence":"additional","affiliation":[{"name":"Pediatrics, University of Florida College of Medicine, Gainesville, Florida, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stephanie","family":"Kirkconnell","sequence":"additional","affiliation":[{"name":"Pediatrics, University of Florida College of Medicine, Gainesville, Florida, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2025,2,20]]},"reference":[{"key":"2025082710284641000_18.2.e263593.1","doi-asserted-by":"crossref","DOI":"10.1128\/JCM.02691-20","article-title":"Human Acanthocephaliasis: a Thorn in the Side of Parasite Diagnostics","volume":"59","author":"Mathison","year":"2021","journal-title":"J Clin Microbiol"},{"key":"2025082710284641000_18.2.e263593.2","doi-asserted-by":"crossref","first-page":"205873922095991","DOI":"10.1177\/2058739220959915","article-title":"Prevalence, risk factors, challenges, and the currently available diagnostic tools for the determination of helminths infections in human","volume":"18","author":"Riaz","year":"2020","journal-title":"Eur J Inflamm"},{"key":"2025082710284641000_18.2.e263593.3","doi-asserted-by":"crossref","first-page":"726","DOI":"10.1097\/INF.0b013e31821e52e9","article-title":"Moniliformis moniliformis Infection in Two Florida Toddlers","volume":"30","author":"Messina","year":"2011","journal-title":"Pediatr Infect Dis J"},{"key":"2025082710284641000_18.2.e263593.4","unstructured":"CDC Parasites . 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