Enterobius vermicularispresentation during laparoscopic cholecystectomy

Abstract

Enterobius vermicularis infection is uncommon in adults, compared to children, and rarely causes significant illness. Adult infection is usually colonic in nature and found incidentally at colonoscopy. Worm migration to other tissues is rare. We here-in describe the case of a 73-year-old woman found to have biliary tree E. vermicularis—an as yet undescribed site of migration.

Bile duct infestation with Enterobius vermicularis diagnosed after cholecystectomy: About two case reports

“…Only one case reporting Enterobius vermicularis migration into the biliary tract has been reported in the literature in an older woman 3 . As it was the case of the two patients reported above, she was operated on for Cholecystocholelithiasis.…”

“…13 Only one case reporting Enterobius vermicularis migration into the biliary tract has been reported in the literature in an older woman. 3 As it was the case of the two patients reported above, she was operated on for Cholecystocholelithiasis. Intraoperatively, live helminths consistent with Enterobius vermicularis were found on the extracted stones from the cystic duct.…”

“…Enterobius vermicularis is a rare cause of biliary tract infestation, and only one case has been reported in the literature. 3 We report two cases of a biliary tract infestation with pinworm diagnosed after cholecystectomy.…”

Fatal Case of a Child Harboring Enterobius vermicularis

“…Since the eggs are deposited outside the intestine, conventional stool microscopy is not a helpful diagnostic tool; however, infection is easily identified using the Graham’s scotch tape method. There have been some extremely rare cases of infection of Enterobius vermicularis in the urinary tract, kidney, biliary tree, fallopian tube, and eye ( Table 1 ) [ 5 , 8 , 9 , 10 , 11 , 12 , 13 , 14 ]. However, the vast majority of infected patients remain asymptomatic.…”

Epidemiologic Study of Enterobius vermicularis Infection among Schoolchildren in the Republic of Marshall Islands

“…In general, the pinworm infestation is mostly asymptomatic, although symptomatic cases are associated with nocturnal anal pruritus; as a result, the patients pick eggs with their fingernails by scratching the anus causing autoinfection; although rare parasites may invade into the reproductive organs and peritoneal cavity [ 20 , 21 ], hepatic enterobiasis which is characterized by the existence of granulomas in the liver containing adult helminths or eggs [ 22 , 23 ] and acute appendicitis [ 24 ] can be found uncommonly. Ectopic movements have also been reported to be associated with recurrent urinary tract infection, which may cause secondary bacterial infection in the gastrointestinal tract [ 25 ].…”