Enterobius vermicularis infestation of the appendix and management at the time of laparoscopic appendicectomy: Case series and literature review

Ariyarathenam, Arun; Nachimuthu, Sivasankaran; Tang, T-Y Dora; Courtney, Edward; Harris, Stuart; Harris, Amy

doi:10.1016/j.ijsu.2010.06.007

Cited by 59 publications

(61 citation statements)

References 22 publications

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“…They predominantly colonise the gastrointestinal tract or, rarely, the female genital tract 1. Pinworms are associated with appendicitis; however, obstruction of the appendiceal lumen remains controversial 2. As pinworms cannot migrate through tissues, peritoneal cavity entry occurs either via fallopian tubes or during appendicectomy 2.…”

Section: Descriptionmentioning

confidence: 99%

Enterobiusgranulomas as a cause of abdominal pain

2015

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Section: Descriptionmentioning

confidence: 99%

Enterobiusgranulomas as a cause of abdominal pain

2015

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“…Enterobius vermicularis is a pinworm which is the most common intestinal parasite in humans and is present worldwide, especially in developed countries (Ariyarathenam et al 2010). Initially, embryonated parasite eggs are ingested by the host and hatch in the stomach with the appearance of coiled larvae.…”

Section: Introductionmentioning

confidence: 99%

Genetic analysis of Enterobius vermicularis isolated from a chimpanzee with lethal hemorrhagic colitis and pathology of the associated lesions

et al. 2014

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Human pinworms, Enterobius vermicularis, are normally recognized as minor pathogens. However, a fatal case of human pinworm infection has been reported in a nonhuman primate, a zoo reared chimpanzee. Here, we histopathologically examined the lesions in tissues from the deceased chimpanzee and genetically characterized the isolated worms to investigate the pathogenicity and determine the phylogeny. We identified ulcers deep in the submucosa where many parasites were found to have invaded the lamina propria mucosa or submucous tissue. An inflammatory reaction consisting mainly of neutrophils and lymphocytes but not eosinophils was observed around the parasites, and intense hemorrhage in the lamina propria was confirmed. The parasites were morphologically similar to E. vermicularis based on the shape of the copulatory spicules. Mitochondrial cytochrome c oxidase subunit 1 gene products were amplified from worm DNA by PCR and were genetically identified as E. vermicularis based on >98.7% similarity of partial sequences. Phylogenetic analysis revealed that the sequences clustered together with other chimpanzee E. vermicularis isolates in a group which has been referred to as type C and which differs from human isolates (type A). The samples were negative for bacterial pathogens and Entamoeba histolytica indicating that E. vermicularis could be pathogenic in chimpanzees. Phylogenetic clustering of the isolates indicated that the parasite may be host specific.

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“…La apendicectomía por apendicitis aguda representa la causa más frecuente de cirugía en los servicios de urgencia en el mundo, siendo la probabilidad de ser sometido a esta cirugía en la vida de un 12% y 25% para hombres y mujeres respectivamente [1][2][3][4] .…”

Section: Introductionunclassified

Oxiuriasis apendicular: estudio de prevalencia y descripción clínico-morfológica

2011

Rev Chil Cir

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Presence of Enterobius vermicularis in surgical pieces of appendectomiesBackground: The frequency of appendicular presence of Enterobius vermicularis varies from 0.2 to 41.8%. It is generally a pathological fi nding. The luminal obstruction by the parasite may unveil an acute appendicitis. Aim: To study the frequency of Enterobius vermicularis presence in surgical pieces of appendectomies. Material and Methods: Analysis of surgical pieces of appendectomies processed at the pathology laboratory of a general hospital, between 1993 and 2010. Results: In 21.038 surgical pieces, the presence of Enterobius vermicularis was found in 322 (1.5%). Fifty nine percent were women and 71% were younger than 18 years. Acute infl ammation was confi rmed in 71%. A history of previous abdominal pain was present in 40 and 70% of patients with and without acute infl ammation in the surgical piece. Conclusions: In this series, the frequency of Enterobius vermicularis presence in surgical pieces of appendectomy was 1.5%.

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Enterobius vermicularis infestation of the appendix and management at the time of laparoscopic appendicectomy: Case series and literature review

Cited by 59 publications

References 22 publications

Enterobiusgranulomas as a cause of abdominal pain

Enterobiusgranulomas as a cause of abdominal pain

Genetic analysis of Enterobius vermicularis isolated from a chimpanzee with lethal hemorrhagic colitis and pathology of the associated lesions

Oxiuriasis apendicular: estudio de prevalencia y descripción clínico-morfológica

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