title: Ileal intussusception due to a parasite egg: a case report.
abstract: Ileal intussusception is the invagination of the small intestine within itself and accounts for 1% of cases of acute obstruction. However, physicians do not initially consider intussusception as a possible diagnosis of obstruction due to its rarity in adults. Herein, we report the case of a 22-year-old male who was admitted to the Emergency Department with continuous abdominal pain. Ultrasonography and computed tomography revealed an ileal intussusception. The patient underwent surgical removal of the segment of the small bowel. Unexpectedly, pathology revealed that the invagination occurred due to a parasite egg, with features suggestive of Schistosoma species. Schistosomiasis, although considered a parasitic disease in tropical countries, is not absent from Europe and though it is highly improbable, it may be responsible for cases of intussusception in adults.
authors.affiliation: José Pedro Pinto, Agostinho Cordeiro, Conceição Antunes, Patrícia Botelho, Pedro Leão, Department of General Surgery, Hospital de Braga, 2242 Apartado, Portugal.
authors.forename: José Pedro
authors.initials: JP
authors.lastname: Pinto
authors.affiliation: José Pedro Pinto, Agostinho Cordeiro, Conceição Antunes, Patrícia Botelho, Pedro Leão, Department of General Surgery, Hospital de Braga, 2242 Apartado, Portugal.
authors.forename: Agostinho
authors.initials: A
authors.lastname: Cordeiro
authors.affiliation: José Pedro Pinto, Agostinho Cordeiro, Conceição Antunes, Patrícia Botelho, Pedro Leão, Department of General Surgery, Hospital de Braga, 2242 Apartado, Portugal.
authors.forename: Ana Margarida
authors.initials: AM
authors.lastname: Ferreira
authors.affiliation: José Pedro Pinto, Agostinho Cordeiro, Conceição Antunes, Patrícia Botelho, Pedro Leão, Department of General Surgery, Hospital de Braga, 2242 Apartado, Portugal.
authors.forename: Conceição
authors.initials: C
authors.lastname: Antunes
authors.affiliation: José Pedro Pinto, Agostinho Cordeiro, Conceição Antunes, Patrícia Botelho, Pedro Leão, Department of General Surgery, Hospital de Braga, 2242 Apartado, Portugal.
authors.forename: Patrícia
authors.initials: P
authors.lastname: Botelho
authors.affiliation: José Pedro Pinto, Agostinho Cordeiro, Conceição Antunes, Patrícia Botelho, Pedro Leão, Department of General Surgery, Hospital de Braga, 2242 Apartado, Portugal.
authors.forename: Ana João
authors.initials: AJ
authors.lastname: Rodrigues
authors.affiliation: José Pedro Pinto, Agostinho Cordeiro, Conceição Antunes, Patrícia Botelho, Pedro Leão, Department of General Surgery, Hospital de Braga, 2242 Apartado, Portugal.
authors.forename: Pedro
authors.initials: P
authors.lastname: Leão
mesh_terms: D000818:Animals; D001706:Biopsy; D006801:Humans; D007077:Ileal Diseases / Q000175:diagnosis / Q000469:parasitology* / Q000601:surgery; D007411:Intestinal Diseases, Parasitic / Q000150:complications / Q000175:diagnosis / Q000469:parasitology* / Q000601:surgery; D007443:Intussusception / Q000175:diagnosis / Q000469:parasitology* / Q000601:surgery; D008297:Male; D010063:Ovum; D012547:Schistosoma / Q000302:isolation & purification*; D012552:Schistosomiasis / Q000150:complications / Q000175:diagnosis / Q000469:parasitology* / Q000601:surgery; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D055815:Young Adult
keywords: Abdominal pain; Bowel obstruction; Ileal intussusception; Parasite egg; Schistosoma