Abstract
Purpose
Although there has been considerable effort to define pre-operative features to predict the malignant potential of intraductal papillary mucinous neoplasms (IPMNs), the prognostic value of pre-operative clinical and MRI features has not been assessed. The aim of this study was to determine pre-operative clinical and MRI features that are predictive of disease-specific death or recurrence in patients undergoing pancreatic resection for IPMNs.
Methods
We performed a retrospective analysis of 167 patients (mean age, 65 years; 114 men and 53 women) who underwent pre-operative MRI and surgical resection of IPMN of pancreas between 2009 and 2019. We evaluated disease-specific survival (DSS) and recurrence-free survival (RFS). Prognostic factor analysis was performed using clinical and MRI features according to the 2017 international consensus guidelines.
Results
Of 167 patients, 86 (51.5%) had benign IPMNs and 81 (48.5%) had malignant IPMNs (48 [28.7%] invasive carcinoma and 33 [19.8%] high grade). On multivariable analysis, mural nodule size (hazard ratio [HR], 1.11; 95% confidence interval [CI], 1.04–1.18 and HR 1.07; 95% CI 1.03–1.12) and obstructive jaundice (HR 5.01; 95% CI 1.44–17.46 and HR 5.60; 95% CI 2.42–12.99) were the significant variables that were associated with DSS and RFS. The presence of lymphadenopathy (HR 50.7; 95% CI 4.0–643.0; P = 0.002) was the significant factor for DSS. IPMNs with mural nodule showed a significantly lower 5-year DSS (83.7% vs. 100%, P value < 0.01) and RFS (73.1% vs. 95.0%, P value < 0.01) compared with IPMNs with no mural nodule.
Conclusions
Mural nodule size on MRI and obstructive jaundice were prognostic markers in the pre-operative evaluation of patients with IPMN of pancreas.
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Abbreviations
- IPMN:
-
Intraductal papillary mucinous neoplasm
- DSS:
-
Disease-specific survival
- RFS:
-
Recurrence-free survival
- HR:
-
Hazard ratio
- CI:
-
Confidence interval
- MPD:
-
Main pancreatic duct
- BD:
-
Branch duct
- MD:
-
Main duct
- MRCP:
-
MR cholangiopancreatography
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Min, J.H., Kim, Y.K., Kim, H. et al. Prognosis of resected intraductal papillary mucinous neoplasm of the pancreas: using revised 2017 international consensus guidelines. Abdom Radiol 45, 4290–4301 (2020). https://doi.org/10.1007/s00261-020-02627-y
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DOI: https://doi.org/10.1007/s00261-020-02627-y