title: Enterobiasis-related inflammatory caecal polyp masquerading as a malignancy.
abstract: A 55 -year-old Asian man was seen in the emergency department with bleeding per rectum. He was a teetotaller and had no previous abdominal surgery. He did, however, report a change in bowel habit towards constipation. He underwent colonoscopy which revealed a lesion, highly suspicious of malignancy, in the caecum. On review by two consultants, a decision to completely resect this lesion was made. Histological analysis of the polypoidal growth showed it to be a consequence of chronic infection with the helminth Enterobius vermicularis. Importantly, there was no evidence of dysplastic or malignant cells. The patient was subsequently discharged with a 3-day course of antihelminthic mebendazole and reassured that his per rectal bleeding was most likely due to haemorrhoids discovered at rectal examination.
authors.affiliation: Chelsea and Westminster Hospital, London, UK.
authors.forename: Nada
authors.initials: N
authors.lastname: Elsaid
authors.forename: Humza
authors.initials: H
authors.lastname: Mahmood
authors.forename: Paris
authors.initials: P
authors.lastname: Tekkis
authors.forename: Emile
authors.initials: E
authors.lastname: Tan
mesh_terms: D000818:Animals; D002430:Cecal Neoplasms / Q000175:diagnosis*; D003937:Diagnosis, Differential; D017229:Enterobiasis / Q000175:diagnosis* / Q000188:drug therapy; D004757:Enterobius; D006801:Humans; D007249:Inflammation / Q000469:parasitology; D007417:Intestinal Polyps / Q000469:parasitology* / Q000473:pathology / Q000601:surgery; D008297:Male; D008875:Middle Aged