Intracholecystic papillary neoplasm
Conditions
Interventions
None listed
Sponsors
Ibaraki Medical Center, Tokyo Medical University
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1 Patients who underwent surgical resection and were diagnosed with ICPN based on the 5th edition of the WHO Classification of Tumors of the Digestive System at each participating institution. 2 Patients with available pathological slides diagnosed as ICPN.
Exclusion criteria
Exclusion criteria: 1 In cases where there were doubts regarding the submitted pathological data, a central pathological review was conducted by the Department of Investigative Pathology, Tohoku University Graduate School of Medicine. Patients who were ultimately not diagnosed with ICPN based on this final pathological assessment were excluded from the study. For excluded patients, the participating institution was informed of the reason when the pathological slides were returned, and relevant information was provided. The collected data for such patients were deleted by the principal investigator. 2 Patients who expressed a desire not to participate in the study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Overall Survival by Subgroups Stratified According to WHO Histopathological Classification | — |
Secondary
| Measure | Time frame |
|---|---|
| 1 Comparison Between Subgroups Stratified by WHO Histopathological Classification and Clinical Background 2 Analysis of Preoperative Clinicophysiological Factors in Subgroups Stratified by WHO Classification 3 Progression-Free Survival in Subgroups Stratified by WHO Histopathological Classification 4 Comparative Analysis of WHO Classification With TNM Staging and the Japanese Classification of Biliary Tract Cancers 5 Investigation of Prognostic Factors Based on Preoperative Clinicophysiological and Pathological Findings in ICPN 6 Association of Background, Clinicophysiological Factors, and Prognosis With Subgroups Stratified by Each Histopathological Diagnosis | — |
Countries
Japan
Contacts
Public ContactRyoichi Miyamoto
Ibaraki Medical Center, Tokyo Medical University Department of Gastroenterological Surgery
Outcome results
None listed