Predictors of malignant transformation in mucinous pancreatic cystic neoplasm: A systemic review and meta-analysis
Related Experiment Video
Updated: Jun 10, 2025
An Orthotopic Resectional Mouse Model of Pancreatic Cancer
Published on: September 24, 2020
Paola Solis-Pazmino1, Camila Pazmino2, Orly Termeie3
1Surgery Group Los Angeles, Los Angeles, CA, USA; Surgery Department, Santa Casa de Porto Alegre, Porto Alegre, RS, Brazil; Knowledge and Evaluation Research Unit, Mayo Clinic, Rochester, MN, 55905, USA; CaTaLiNA- Cancer de Tiroides en Latino America, Quito, Ecuador.
Background:
The presence of ovarian-type stroma defines mucinous cystic neoplasm (MCN). Criteria for surgical resection differ between current consensus guidelines (IAP, AGA, and Europe). This meta-analysis aims to describe pre-surgical clinical parameters that predict malignant transformation of MCN of the pancreas.
Methods:
A systematic review and meta-analysis of articles published from 2006 to the time of manuscript authorship in December 2022. The electronic databases included English publications in Ovid MEDLINE In-Process & Other Non-Indexed Citations, Ovid MEDLINE, Ovid EMBASE, and Scopus.
Results:
17 studies were identified and included 1058 patients with MCN treated with pancreatectomy. The mean cohort age was 48.2 years (standard deviation [SD] ± 7.9) with an expected female predominance (96 %). The presenting symptom for most was abdominal pain (55.6 %), however, nearly 20 % of patients were asymptomatic. Most patients were treated with distal pancreatectomy (70.5 %), and the mean tumor size was 45 mm. The rate of invasive cancer was 13.8 %. Cysts with mural nodules had a higher risk of developing invasive tumors than those that did not (OR 26.47, 95%CI 12.57-55.74, p < 0.001, I2:0 %). Other clinical factors such as the presence of intramural calcifications or an elevated serum CA 19-9 (>37U/mL) were not predictive of malignancy.
Conclusion:
The present meta-analysis did not clarify establishing reliable predictors for malignant transformation other than mural modularity, which may represent tumors that have already undergone transformation. It may be used as a criterion in treatment decision-making.
