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Management Strategy and Surveillance of Intraductal Papillary Mucinous Neoplasm-Gastroenterologist's Viewpoint

췌관 내 유두상 점액종양의 치료 전략과 추적 관찰-소화기내과의 관점

  • Kim, Tae Hyeon (Divison of Biliopancreas, Department of Internal Medicine, Wonkwang University Hospital, Wonkwang University School of Medicine) ;
  • Chon, Hyung Ku (Divison of Biliopancreas, Department of Internal Medicine, Wonkwang University Hospital, Wonkwang University School of Medicine)
  • 김태현 (원광대학교 의과대학 원광대학교병원 췌장담도내과) ;
  • 전형구 (원광대학교 의과대학 원광대학교병원 췌장담도내과)
  • Received : 2021.05.16
  • Accepted : 2021.05.18
  • Published : 2021.06.01

Abstract

The length, the frequency, and the methods of surveillance for intraductal papillary mucinous neoplasm (IPMN) of the pancreas are still debating. According to the recent guidelines, IPMN is stratified into "high-risk stigmata" or absolute indication and "worrisome features" or relative indication as a guide in managing these patients, either those with resection of the lesion or those under surveillance. The risk of malignant transformation was quite low for branch duct-IPMNs without worrisome features or high risk stigmata. However, because the incidence rate of pancreatic cancer in these patients increase linearly with time, continued long-term surveillance is therefore important for patients with low-risk, as well as higher-risk, IPMN. Considering the high prevalence of malignancy, main duct-IPMN should be treated by surgical resection. Among patients with these type IPMNs, segmental dilatation of the main pancreatic duct without any mural nodules and larger than 10 mm of main pancreatic duct might not be immediately resected and need very careful examination and observation. The risk related to a major pancreatic resection must balance the risk of surveillance in patients with IPMN of the pancreas who have co-morbidity and are elderly.

췌관 내 유두상 점액종양은 매우 다양한 자연경과와 예후를 가지고 있어 추적 검사방법, 간격, 기간 등이 아직도 논란이 되고 있다. 이 종양에 대한 진료지침들에서는 추적 검사를 받을 환자군과 수술적 치료가 필요한 군으로 분류하기 위하여 악성화 고위험 특징 또는 절대적 수술 적응증과 걱정스러운 특징 또는 상대적 수술 적응증으로 분류하였다. 걱정스러운 특징이나 고위험 특징이 없는 분지형 유두상 점액종양은 혼합형이나 주췌관 종양에 비하여 악성화 위험성이 매우 낮다고 보고되고 있다. 그러나 저위험 특징을 가진 환자들을 장기간 추적한 연구에서 시간이 지남에 따라서 췌장암 발생이 점점 높아지고 있다고 보고하고 있어 지속적인 장기간 추적 검사가 필요하다. 혼합형과 주췌관형 유두상 점액종양은 악성화 가능성이 매우 높아 수술적 치료가 필요하다고 알려져 있다. 무결절이고 주췌관 직경이 10 mm 미만으로 분절형 주췌관 확장을 가진 환자들은 악성화 가능성이 낮아서 즉각적인 수술보다는 주의 깊은 추적관찰을 고려해볼 수 있다. 고령이나 기저질환을 동반한 환자의 치료 방향을 결정할 때는 췌장암 발생의 위험도와 수술의 위험성을 균형있게 평가해야 한다.

Keywords

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