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Related Experiment Video

Updated: Jan 29, 2026

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Enterobius vermicularis Appendiceal Colic.

Michael Sosin1, Johnathan R Kent1, A Alfred Chahine2

  • 1Department of Surgery, Medstar Georgetown University Hospital, Washington, District of Columbia.

Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
|February 6, 2019
PubMed
Summary
This summary is machine-generated.

Enterobius vermicularis, or pinworm, can cause appendiceal colic, mimicking appendicitis. This case highlights a rare diagnosis in the US, confirmed by intraoperative visualization and unique ultrasound imaging, leading to appropriate medical treatment.

Keywords:
Enterobius vermicularisappendiceal colicappendicitisappendixhelminth

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Area of Science:

  • Gastroenterology
  • Parasitology
  • Pediatric Surgery

Background:

  • Appendiceal colic and acute appendicitis caused by Enterobius vermicularis (pinworm) are infrequent in the United States.
  • Appendicitis is a common surgical emergency, particularly in children.

Observation:

  • A 9-year-old patient presented with symptoms suggestive of acute appendicitis.
  • Intraoperative findings revealed Enterobius vermicularis within the appendix, revising the diagnosis to appendiceal colic.
  • Preoperative ultrasound provided the first reported imaging of pinworm within the appendiceal lumen.

Findings:

  • Enterobius vermicularis infestation can present as appendiceal colic, mimicking acute appendicitis.
  • Ultrasonography can visualize pinworm inhabitance within the appendiceal lumen.
  • Postoperative albendazole treatment resulted in appropriate recovery.

Implications:

  • Increased provider awareness of Enterobius vermicularis-associated appendiceal colic can prevent unnecessary appendectomies.
  • Dissemination of unique ultrasonographic findings aids in diagnosing this rare condition.
  • Understanding the epidemiology and pathophysiology of E. vermicularis appendiceal disease informs treatment strategies.