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Arteriovenous Malformation of the Distal Ileum in a 14-Year-Old Girl with Recurrent Abdominal Pain: A Case Report

반복되는 복통을 주소로 내원한 14세 여아의 말단부 회장의 동정맥 기형: 증례 보고

  • Kang, Hyein (Department of Radiology, Chung-Ang University Hospital) ;
  • Lee, Eun Sun (Department of Radiology, Chung-Ang University Hospital) ;
  • Kim, Hee Sung (Department of Pathology, Chung-Ang University Hospital) ;
  • Kim, Mi Kyung (Department of Pathology, Chung-Ang University Hospital) ;
  • Park, Kwi-Won (Department of Surgery, Chung-Ang University Hospital) ;
  • Yi, Dae Yong (Department of Pediatrics, Chung-Ang University Hospital) ;
  • Choi, Byung Ihn (Department of Radiology, Chung-Ang University Hospital) ;
  • Lee, Jong Beum (Department of Radiology, Chung-Ang University Hospital) ;
  • Park, Hyun Jeong (Department of Radiology, Chung-Ang University Hospital)
  • 강혜인 (중앙대학교병원 영상의학과) ;
  • 이은선 (중앙대학교병원 영상의학과) ;
  • 김희성 (중앙대학교병원 병리과) ;
  • 김미경 (중앙대학교병원 병리과) ;
  • 박귀원 (중앙대학교병원 외과) ;
  • 이대용 (중앙대학교병원 소아과) ;
  • 최병인 (중앙대학교병원 영상의학과) ;
  • 이종범 (중앙대학교병원 영상의학과) ;
  • 박현정 (중앙대학교병원 영상의학과)
  • Received : 2017.02.20
  • Accepted : 2017.11.18
  • Published : 2018.04.01

Abstract

Arteriovenous malformation (AVM) is a lesion involving a high-flow vascular malformation, which is one of the causes of massive gastrointestinal bleeding. In the pediatric population, AVM is quite rare in the gastrointestinal tract, and the most common primary site is the colon. A small bowel is a rare primary site of AVM, and only 1 case has been reported in Korea. Here, we report on a case of AVM found in the distal ileum of a 14-year-old girl who complained about recurrent lower abdominal pain only without a gastrointestinal hemorrhage. In the previous research literature, a small bowel AVM can be diagnosed through detecting the existence of an enhancing nidus of the intestinal wall at the arterial phase, accompanied by an early draining vein as it appeared on a dynamic contrast-enhanced abdominal computed tomography. In our case, the pathologically confirmed AVM of the distal ileum showed a dot-like enhancement within the thick low-attenuating submucosal layer of the terminal ileum.

동정맥 기형은 고유량 혈관기형으로서 위장관에서 발생하는 대량 출혈의 원인 중 하나이다. 소아의 위장관에서는 드물게 발견되며 선천성으로 존재할 경우 주된 원발 장소는 대장이다. 소장에서 발견되는 경우는 드물며 국내에선 1예만 보고되었다. 이에 저자들은 위장관 출혈 없이, 반복되는 하복부 통증의 단일 증상으로 내원한 소아 환자에서 발견된 말단부 회장의 동정맥 기형 1예를 보고하고자 한다. 기존 문헌 보고에 따르면, 소장의 동정맥 기형은 역동적 조영증강 복부 전산화단층촬영(computed tomography, 이하 CT)에서 동맥기 장관벽의 점상 조영에 동반된 빠르게 조영되는 배출 정맥의 존재로 진단될 수 있다. 본 증례에서는 병리적으로 확인된 말단부 회장의 동정맥 기형이 CT에서 낮은 감쇠를 보이는 비후된 점막하층 내 점상의 조영 증가 병변으로 보였다.

Keywords

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