An Assessment of IPMN Screening in Liver Transplant Recipients

Document Type

Conference Proceeding

Publication Date

10-25-2023

Publication Title

Am J Gastroenterol

Abstract

Introduction: Management of intraductal papillary mucinous neoplasm (IPMN) is controversial, and several guidelines have aimed to establish an adequate strategy for surveillance. There is increasing evidence that that liver transplant patients are at higher risk of progression of extrahepatic malignancy post-transplant. This study aims to investigate IPMN progression among liver transplant (LT) recipients on chronic immunosuppression. Methods: A retrospective cohort study was conducted at an urban quaternary care center in midwestern United States. An institutional LT recipient database of 628 consecutive patients from 2013 to 2019 was analyzed for imaging evidence of IPMN. Computed tomography and magnetic resonance imaging obtained pre- and post-transplant were included. Subsequent imaging at 1, 2, and 3 years were evaluated. Cytology, patient status, and immunosuppressive agent 1 year following transplantation were recorded. Results: The prevalence of suspected IPMN from the database was 7.6% (n=48). IPMN’s that were identified pre transplant comprised 44% (n=21) of the cohort. The average increase in size of IPMN at 1, 2, and 3 years after transplant was 0.09, 0.28, and 0.52 cm respectively. Two percent of patients (n=1) developed pancreatic adenocarcinoma. Conclusion: While general guidelines for IPMN screening vary, the data suggest that LT patients with IPMN’s follow similar courses. Further investigation is necessary to establish adequate surveillance intervals in this population.

Volume

118

Issue

10

First Page

S1035

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