ArticleCurrent oncology (Toronto, Ont.)2026
Imaging-Based Risk Stratification of IPMN Using a Structured Imaging Score: A Retrospective Proof-of-Concept Study.
Article in Current oncology (Toronto, Ont.), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
BACKGROUND/
objectivesAccurate risk stratification of intraductal papillary mucinous neoplasms (IPMNs) remains clinically challenging. This study evaluates a structured imaging-based scoring approach for IPMN risk stratification, referred to as the Tübingen Dignity Score (TDS), and compares its diagnostic performance with established methods.
methodsIn this retrospective study, imaging findings from patients with suspected IPMN were analyzed using MRI, CT, and ultrasound. The TDS was applied as an imaging-based scoring system. Diagnostic performance was assessed in a histopathological subset and compared with MRI-based assessment and Fukuoka criteria.
resultsMRI showed high sensitivity (94.4%) but limited specificity (57.1%). Fukuoka criteria showed high sensitivity (100%) and high specificity (91.3%) in this cohort, although with a lower positive predictive value. In contrast, the TDS showed high specificity (100%) and positive predictive value, but lower sensitivity (40%), reflecting a different diagnostic profile. These findings indicate a trade-off between sensitivity and specificity across the evaluated approaches. However, the limited number of malignant cases limits the robustness and generalizability of these estimates.
conclusionsThe TDS may serve as a complementary, imaging-based tool within a multimodal diagnostic framework for IPMN. Its potential value lies in supporting clinical decision-making in selected cases, particularly where established criteria yield inconclusive results. Given the limited sample size, retrospective single-center design, and exploratory nature of this study, external prospective multicenter validation is required before routine clinical application can be recommended.
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