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Updated: Feb 25, 2026
Application of End-to-end Anastomosis in Robotic Central Pancreatectomy
Published on: June 2, 2018
Computed Tomography Features Predictive of Lymph Node Involvement in Patients With a Nonfunctioning Pancreatic
Sang Hyun Choi1, Hyoung Jung Kim, So Yeon Kim
1From the Departments of *Radiology and the Research Institute of Radiology, †Surgery, and ‡Internal Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea.
Objectives:
This study aims to identify the computed tomography (CT) features that may differentiate nonfunctioning pancreatic neuroendocrine tumors (NF-PanNETs) with lymph node (LN) metastasis from NF-PanNETs without lymph node metastasis.
Methods:
We retrospectively analyzed 166 NF-PanNETs in 166 patients who had undergone surgical resection (median age, 53). Two radiologists evaluated the qualitative and quantitative CT findings. Through univariate and multivariate logistic regression analyses, we determined independent significant findings for differentiating NF-PanNETs with LN metastasis from NF-PanNETs without LN metastasis. Recurrence-free survival (RFS) and overall survival (OS) were compared between the 2 groups using Kaplan-Meier analysis and log-rank testing.
Results:
Of the 166 NF-PanNETs, 24 (14.5%) tumors demonstrated LN metastasis. Three CT findings, radiologic LN enlargement (adjusted odds ratio [OR], 11.76; P = 0.001), liver metastasis (OR, 10.31; P = 0.027), and portal enhancement ratio of <1.238 (OR, 3.58; P = 0.033), were independently significant for differentiating NF-PanNETs with LN metastasis from NF-PanNETs without LN metastasis. Tumor size greater than 2 cm also showed a statistically marginal significance (OR, 8.47; P = 0.050). The median RFS and OS in NF-PanNETs with LN metastasis were significantly shorter than NF-PanNETs without LN metastasis (23.7 months vs 33.2 months, P < 0.001; 33.7 months vs 54.8 months, P < 0.001).
Conclusions:
Four CT findings can be useful to differentiate NF-PanNETs with LN metastasis and NF-PanNETs without LN metastasis.
