Comparison of morphological features in lymph node metastasis between pancreatic neuroendocrine neoplasms and pancreatic ductal adenocarcinomas
| Autor: | Naoto Gotohda, Motohiro Kojima, Daigoro Takahashi, Shinichiro Takahashi, Atsushi Ochiai, Shin Kobayashi, Ryo Morisue, Motokazu Sugimoto, Masaru Konishi, Masafumi Ikeda |
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| Rok vydání: | 2020 |
| Předmět: |
Adult
Male Pathology medicine.medical_specialty Endocrinology Diabetes and Metabolism Lymph node metastasis Kaplan-Meier Estimate Metastasis 03 medical and health sciences 0302 clinical medicine Predictive Value of Tests Pancreatic cancer medicine Minor axis Humans Pancreatic carcinoma Propensity Score Lymph node Pancreas Aged Neoplasm Staging Retrospective Studies Predictive marker Hepatology business.industry Gastroenterology Middle Aged medicine.disease Survival Analysis Pancreatic Neoplasms Neuroendocrine Tumors medicine.anatomical_structure ROC Curve 030220 oncology & carcinogenesis Lymphatic Metastasis 030211 gastroenterology & hepatology Female Lymph Lymph Nodes business Carcinoma Pancreatic Ductal |
| Zdroj: | Pancreatology : official journal of the International Association of Pancreatology (IAP) ... [et al.]. 20(5) |
| ISSN: | 1424-3911 |
| Popis: | Background Various studies have reported inconsistent results regarding the use of lymph node size for the prediction of metastasis in pancreatic cancer. Further, there is even less information in pNENs. Thus, the clinical accuracy and utility of using lymph node size to predict lymph node metastasis in pNENs has not been fully elucidated Objectives This study aimed to examine differences in lymph node morphology between pancreatic neuroendocrine neoplasms (pNENs) and pancreatic ductal adenocarcinomas (PDACs) to create more accurate diagnostic criteria for lymph node metastasis. Methods We assessed 2139 lymph nodes, 773 from pNEN specimens and 1366 from PDAC specimens, surgically resected at our institute between 1994 and 2016. We evaluated the number, shape, size, and presence of metastasis. Results Sixty-eight lymph nodes from 16 pNEN patients and 109 lymph nodes from 33 PDAC patients were metastatic. There were more lymph nodes sampled per case in the PDAC group than in the pNEN group (31.8 vs. 18.0). Metastatic lymph nodes in pNEN patients were larger and rounder than those in PDAC patients (minor axis: 5.15 mm vs. 3.11 mm; minor axis/major axis ratio: 0.701 vs. 0.626). The correlation between lymph node size and metastasis was stronger in pNENs (r = 0.974) than in PDACs (r = 0.439). Conclusions Lymph node status and morphology are affected by differences in tumor histology. The lymph node minor axis is a reliable parameter for the prediction of lymph node metastasis and has more utility as a predictive marker in pNENs than in PDACs. |
| Databáze: | OpenAIRE |
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