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Prevalence and Clinical Significance of Pancreatic Cystic Lesions in Immunosuppressed Patients with Solid Organ Transplantation

Y. Yu, H. Jo, Y. Choi, J. Lee, D. Kim

HBP surgery and liver transplantation, Korea University College of Medicine and School of Medicine, Seoul, Korea, Republic of

Meeting: 2022 American Transplant Congress

Abstract number: 67

Keywords: Pancreas, Tumor recurrence

Topic: Clinical Science » Organ Inclusive » 67 - Non-PTLD/Malignancies

Session Information

Session Name: PTLD and Malignancies

Session Type: Rapid Fire Oral Abstract

Date: Sunday, June 5, 2022

Session Time: 3:30pm-5:00pm

 Presentation Time: 4:50pm-5:00pm

Location: Hynes Room 309

*Purpose: Solid organ transplant recipients have an increased risk of cancer due to immunosuppressive therapy. Pancreatic cystic lesions (PCLs) are increasingly being detected, some with malignant potential. We aimed to determine the prevalence of these lesions and describe their clinical course in these patients.

*Methods: We identified the presence of pancreatic cystic lesions in a retrospective cohort of 804 consecutive solid organ transplant recipients from 2009 to 2019 and compared lesion characteristics at initial and follow-up imaging, when available. We also compared these features with an immunocompetent control group encompassing patients under surveillance for greater than 12 months and were matched for age and sex.

*Results: There were 15 patients in the study group and 60 patients in the control group. Among the solid organ transplant recipients with PCLs, there were 7 and 8 patients undergoing liver and kidney transplantation, respectively. Lesion prevalence was 1.86% (15/805). Median diameter of the largest lesion was 20 mm (range: 0.2-60 mm) and most lesions were benign (9/15, simple cyst or pseudocyst). During follow-up imaging, the cysts size remained stable in 79.7%, increased in 6.6%, and decreased in 13.7%. Among patients diagnosed with IPMN (6/15), worrisome features was noted in one patient at the time of cyst diagnosis. However, due to multiple comorbidities the patient received only conservative management. There were no significantly different features including the rate of size increase or the development of worrisome features between the study and control group (p<0.05).

*Conclusions: Pancreatic cystic lesions are somewhat common in solid organ transplant recipients. In lesions without high-risk features, the development of features worrisome for cancer is rare. These lesions can be managed conservatively, and their presence should not affect transplant eligibility.

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To cite this abstract in AMA style:

Yu Y, Jo H, Choi Y, Lee J, Kim D. Prevalence and Clinical Significance of Pancreatic Cystic Lesions in Immunosuppressed Patients with Solid Organ Transplantation [abstract]. Am J Transplant. 2022; 22 (suppl 3). https://atcmeetingabstracts.com/abstract/prevalence-and-clinical-significance-of-pancreatic-cystic-lesions-in-immunosuppressed-patients-with-solid-organ-transplantation/. Accessed May 30, 2025.

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