Abstract
Introduction:The main aim of this study was to determine the frequency of Enterobius Vermicularis infections and other unique histopathological findings in patients diagnosed with acute appendicitis.Materials:This retrospective study was conducted in a tertiary care hospital of Karachi, Pakistan over a time period of 9 years from 2005 to 2013. The recorded demographic and histopathological data for the 2956 appendectomies performed during this time frame were extracted using a structured template form. Negative and incidental appendectomies were excluded from the study.Results:Out of the 2956 patients diagnosed with acute appendicitis, 84 (2.8%) patients had Enterobius Vermicularis infections. Malignancy (n=2, 0.1%) and infection with Ascaris (n=1, 0.1%) was found very rarely among the patients. Eggs in lumen (n=22, 0.7%), mucinous cystadenoma (n=28, 1.0%), mucocele (n=11, 0.4%), lymphoma (n=9, 0.3%), obstruction in lumen (n=17, 0.6%) and purulent exudate (n=37, 1.3%) were also seldom seen in the histopathological reports.Conclusion:Enterobius Vermicularis manifestation is a rare overall but a leading parasitic cause of appendicitis. Steps such as early diagnosis and regular de worming may help eradicate the need for surgeries.
Highlights
The main aim of this study was to determine the frequency of Enterobius Vermicularis infections and other unique histopathological findings in patients diagnosed with acute appendicitis.Materials: This retrospective study was conducted in a tertiary care hospital of Karachi, Pakistan over a time period of 9 years from 2005 to 2013
Out of the 2956 patients diagnosed with acute appendicitis, 84 (2.8%) patients had Enterobius Vermicularis infections
A total of 2956 patients underwent appendectomy to treat an initial diagnosis of acute appendicitis
Summary
The main aim of this study was to determine the frequency of Enterobius Vermicularis infections and other unique histopathological findings in patients diagnosed with acute appendicitis.Materials: This retrospective study was conducted in a tertiary care hospital of Karachi, Pakistan over a time period of 9 years from 2005 to 2013. Considered as one of the surgical emergencies, acute appendicitis normally manifests upon inflammation of the inner lining of the appendix vermiformis, which can spread to other parts of the organ. Epidemiologic studies have revealed that approximately 7 percent of the population will have appendicitis in their life time, with the peak incidence occurring between the ages of 10and 30 years (Haren, 1999). The other less frequent factors include mucinous cystadenoma or mucocele (Demetrashvili et al, 2012), carcinoid tumor (Al & Vajpeyi, 2011), granulomatous diseases (Abdull, 2010), Enterobiasis (Akbulut et al, 2011), Taeniasis (Hafezi & Seifmanesh, 2011), Ascariasis (Sforza et al, 2011), diverticulitis (Manzanares-CampilloMdel, Pardo-García & Martín-Fernández, 2011), adenocarcinoma (O’Donnell, Badger, Beattie, Carson, & Garstin, 2007), lymphoma (O’Donnell, Badger, Beattie, Carson, & Garstin, 2007), and neurogenic appendicopathy (Gupta, Solanki & Vasishta, 2011)
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