J Pathol Transl Med.  2021 Jul;55(4):247-264. 10.4132/jptm.2021.05.28.

Standardization of the pathologic diagnosis of appendiceal mucinous neoplasms

Affiliations
  • 1Department of Pathology, Chungnam National University Sejong Hospital, Chungnam National University College of Medicine, Daejeon, Korea
  • 2Department of Pathology, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
  • 3Department of Pathology, Inha University School of Medicine, Incheon, Korea
  • 4Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
  • 5Department of Pathology, Research Institute and Hospital, National Cancer Center, Goyang, Korea
  • 6Department of Pathology, Seoul National University Boramae Hospital, Seoul National University College of Medicine, Seoul, Korea
  • 7Department of Pathology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
  • 8Department of Pathology, Yonsei University Wonju College of Medicine, Wonju, Korea
  • 9Department of Pathology, Soonchunhyang University Seoul Hospital, Seoul, Korea
  • 10Department of Pathology, Kosin University Gospel Hospital, Kosin University College of Medicine, Busan, Korea
  • 11Department of Pathology, Konkuk University School of Medicine, Seoul, Korea
  • 12Department of Pathology, Inje University Sanggye Paik Hospital, Seoul, Korea
  • 13Department of Pathology, Chung-Ang University School of Medicine, Seoul, Korea
  • 14Department of Pathology, St. Maria Pathology, Busan, Korea
  • 15Department of Pathology, Busan Paik Hospital, Inje University College of Medicine, Busan, Korea
  • 16Department of Pathology, Pusan National University Hospital and Pusan National University School of Medicine, Busan, Korea
  • 17Department of Pathology, Dankook University College of Medicine, Cheonan, Korea
  • 18Department of Pathology, Seoul National University College of Medicine, Seoul, Korea
  • 19Department of Forensic Medicine, Kyungpook National University School of Medicine, Daegu, Korea
  • 20Department of Pathology, Hallym University Dongtan Sacred Heart Hospital, Hwaseong, Korea

Abstract

Although the understanding of appendiceal mucinous neoplasms (AMNs) and their relationship with disseminated peritoneal mucinous disease have advanced, the diagnosis, classification, and treatment of AMNs are still confusing for pathologists and clinicians. The Gastrointestinal Pathology Study Group of the Korean Society of Pathologists (GPSG-KSP) proposed a multicenter study and held a workshop for the “Standardization of the Pathologic Diagnosis of the Appendiceal Mucinous Neoplasm” to overcome the controversy and potential conflicts. The present article is focused on the diagnostic criteria, terminologies, tumor grading, pathologic staging, biologic behavior, treatment, and prognosis of AMNs and disseminated peritoneal mucinous disease. In addition, GPSG-KSP proposes a checklist of standard data elements of appendiceal epithelial neoplasms to standardize pathologic diagnosis. We hope the present article will provide pathologists with updated knowledge on how to handle and diagnose AMNs and disseminated peritoneal mucinous disease.

Keyword

Appendiceal mucinous neoplasm; Disseminated peritoneal mucinous disease; Standardization; Pathologic diagnosis
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