Branch-duct intraductal papillary mucinous neoplasm: a retrospective study on neoplastic risk after 5 years of surveillance

Objectives:. Long-term surveillance of branch-duct intraductal papillary mucinous neoplasms (BD-IPMN) remains controversial, particularly regarding cysts follow-up >5 years. The primary endpoint of this study was to assess the risk of malignant transformation of presumed BD-IPMN during follow-up...

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Main Authors: Marie-Pier Bachand, Mohamed-Anas Chennouf, Mandy Malick, Annie Beaudoin
Format: Article
Language:English
Published: Wolters Kluwer Health/LWW 2024-12-01
Series:Journal of Pancreatology
Online Access:http://journals.lww.com/10.1097/JP9.0000000000000162
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author Marie-Pier Bachand
Mohamed-Anas Chennouf
Mandy Malick
Annie Beaudoin
author_facet Marie-Pier Bachand
Mohamed-Anas Chennouf
Mandy Malick
Annie Beaudoin
author_sort Marie-Pier Bachand
collection DOAJ
description Objectives:. Long-term surveillance of branch-duct intraductal papillary mucinous neoplasms (BD-IPMN) remains controversial, particularly regarding cysts follow-up >5 years. The primary endpoint of this study was to assess the risk of malignant transformation of presumed BD-IPMN during follow-up and identify clinical and morphological predictors of malignancy. Methods:. We performed a retrospective analysis of data from all patients with a presumed BD-IPMN diagnosis at the CIUSSS de l’Estrie CHUS, from 2004 to 2018. Results:. The final database included 380 patients with presumed BD-IPMN with a median follow-up of 43.9 months (interquartile range [IQR] 28.6–73.3 months). Mean age at diagnosis was 65.5 years [27–90], 159 patients (42.8%) were male and 17 patients (4.5%) underwent resection of their lesion during their surveillance period. In our cohort, 132 patients (34.7%) had a follow-up of >5 years. Overall risk of malignancy was 2.1% [0.9%–4.1%]. During follow-up, neoplastic transformation was observed in 2 of 132 patients (1.5%) surveilled >5 years. Malignancy was significantly associated with cyst growth >2.5 mm/y (57.1% vs 5.8%; P < .001) dilated MPD (71.4% vs 4.9%; P < .001), solid component (71.4% vs 1.3%; P < .001), positive cytology (37.5% vs 0.5%; P < .001), development of high-risk stigmatas (87.5% vs 1.9%; P < .001), or worrisome features (87.5% vs 23.9%; P < .001) during follow-up and symptoms of jaundice (25% vs 0.5%; P = .002) and abdominal pain (50% vs 9.4%; P = .005). Conclusion:. While overall malignancy risk remains low in presumed BD-IPMN, continuous surveillance should be pursued after 5 years in surgically fit individuals, particularly in patients who develop our identified risk factors.
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spelling doaj-art-00fbe7637e47487f931e30ed7fd11f0f2025-08-20T02:32:33ZengWolters Kluwer Health/LWWJournal of Pancreatology2096-56642577-35772024-12-017427928410.1097/JP9.0000000000000162202412000-00008Branch-duct intraductal papillary mucinous neoplasm: a retrospective study on neoplastic risk after 5 years of surveillanceMarie-Pier Bachand0Mohamed-Anas Chennouf1Mandy Malick2Annie Beaudoin3a Division of Gastroenterology, Centre Hospitalier Universitaire Sherbrooke, Sherbrooke, QC, Canadaa Division of Gastroenterology, Centre Hospitalier Universitaire Sherbrooke, Sherbrooke, QC, Canadab Division of Medicine, University of Sherbrooke, Sherbrooke, QC, Canadaa Division of Gastroenterology, Centre Hospitalier Universitaire Sherbrooke, Sherbrooke, QC, CanadaObjectives:. Long-term surveillance of branch-duct intraductal papillary mucinous neoplasms (BD-IPMN) remains controversial, particularly regarding cysts follow-up >5 years. The primary endpoint of this study was to assess the risk of malignant transformation of presumed BD-IPMN during follow-up and identify clinical and morphological predictors of malignancy. Methods:. We performed a retrospective analysis of data from all patients with a presumed BD-IPMN diagnosis at the CIUSSS de l’Estrie CHUS, from 2004 to 2018. Results:. The final database included 380 patients with presumed BD-IPMN with a median follow-up of 43.9 months (interquartile range [IQR] 28.6–73.3 months). Mean age at diagnosis was 65.5 years [27–90], 159 patients (42.8%) were male and 17 patients (4.5%) underwent resection of their lesion during their surveillance period. In our cohort, 132 patients (34.7%) had a follow-up of >5 years. Overall risk of malignancy was 2.1% [0.9%–4.1%]. During follow-up, neoplastic transformation was observed in 2 of 132 patients (1.5%) surveilled >5 years. Malignancy was significantly associated with cyst growth >2.5 mm/y (57.1% vs 5.8%; P < .001) dilated MPD (71.4% vs 4.9%; P < .001), solid component (71.4% vs 1.3%; P < .001), positive cytology (37.5% vs 0.5%; P < .001), development of high-risk stigmatas (87.5% vs 1.9%; P < .001), or worrisome features (87.5% vs 23.9%; P < .001) during follow-up and symptoms of jaundice (25% vs 0.5%; P = .002) and abdominal pain (50% vs 9.4%; P = .005). Conclusion:. While overall malignancy risk remains low in presumed BD-IPMN, continuous surveillance should be pursued after 5 years in surgically fit individuals, particularly in patients who develop our identified risk factors.http://journals.lww.com/10.1097/JP9.0000000000000162
spellingShingle Marie-Pier Bachand
Mohamed-Anas Chennouf
Mandy Malick
Annie Beaudoin
Branch-duct intraductal papillary mucinous neoplasm: a retrospective study on neoplastic risk after 5 years of surveillance
Journal of Pancreatology
title Branch-duct intraductal papillary mucinous neoplasm: a retrospective study on neoplastic risk after 5 years of surveillance
title_full Branch-duct intraductal papillary mucinous neoplasm: a retrospective study on neoplastic risk after 5 years of surveillance
title_fullStr Branch-duct intraductal papillary mucinous neoplasm: a retrospective study on neoplastic risk after 5 years of surveillance
title_full_unstemmed Branch-duct intraductal papillary mucinous neoplasm: a retrospective study on neoplastic risk after 5 years of surveillance
title_short Branch-duct intraductal papillary mucinous neoplasm: a retrospective study on neoplastic risk after 5 years of surveillance
title_sort branch duct intraductal papillary mucinous neoplasm a retrospective study on neoplastic risk after 5 years of surveillance
url http://journals.lww.com/10.1097/JP9.0000000000000162
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