title: Fish bone migration to the urinary bladder after rectosigmoid colon perforation.
abstract: Fish bones are the most common foreign objects leading to bowel perforation. Most cases are confined to the extraluminal space without penetration of an adjacent organ. However, abscess formation due to the perforation of the rectosigmoid colon by a fish bone can lead to the penetration of the urinary bladder and may subsequently cause the fish bone to migrate into the urinary bladder. In the presented case, a 42-year-old female was admitted for lower abdominal pain. The computed tomography (CT) demonstrated a 5 cm pelvic abscess containing a thin and curvilinear foreign body. After conservative management, the patient was discharged. After 1 mo, the subject developed a mechanical ileus. Surgery had to be delayed due to her hyperthyroidism. Migration of the foreign body to the urinary bladder was shown on additional CT. A Yellowish fish bone 3.5 cm in size was removed through intra-operative cystoscopy. The patient was discharged 8 d after the operation without any unexpected event.
authors.affiliation: Min-Kyung Cho, Moon-Soo Lee, Department of Surgery, Eulji University Hospital, Daejeon 302-799, South Korea.
authors.forename: Min-Kyung
authors.initials: MK
authors.lastname: Cho
authors.affiliation: Min-Kyung Cho, Moon-Soo Lee, Department of Surgery, Eulji University Hospital, Daejeon 302-799, South Korea.
authors.forename: Moon-Soo
authors.initials: MS
authors.lastname: Lee
authors.affiliation: Min-Kyung Cho, Moon-Soo Lee, Department of Surgery, Eulji University Hospital, Daejeon 302-799, South Korea.
authors.forename: Hyun-Young
authors.initials: HY
authors.lastname: Han
authors.affiliation: Min-Kyung Cho, Moon-Soo Lee, Department of Surgery, Eulji University Hospital, Daejeon 302-799, South Korea.
authors.forename: Seung Hyo
authors.initials: SH
authors.lastname: Woo
mesh_terms: D018784:Abdominal Abscess / Q000175:diagnosis / Q000209:etiology* / Q000628:therapy; D000328:Adult; D000818:Animals; D001842:Bone and Bones / Q000000981:diagnostic imaging; D012809:Colon, Sigmoid / Q000000981:diagnostic imaging / Q000293:injuries*; D003558:Cystoscopy; D005260:Female; D005399:Fishes; D005548:Foreign-Body Migration / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery; D006801:Humans; D045823:Ileus / Q000209:etiology; D007416:Intestinal Perforation / Q000175:diagnosis / Q000209:etiology* / Q000628:therapy; D017747:Seafood / Q000009:adverse effects*; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D001743:Urinary Bladder / Q000000981:diagnostic imaging / Q000293:injuries* / Q000601:surgery
keywords: Fish bone; Foreign body induced bowel perforation; Foreign body ingestion; Rectosigmoid colon perforation; Urinary bladder