Abstract Library

#4566 Predictive value of high-risk histopathological- and molecular criteria for lymph node metastasis in appendiceal neuroendocrine tumours

Introduction: Appendiceal neuroendocrine tumours (aNET) are rare neoplasms for which consensus is needed for follow-up and additional treatment. To unravel the factors behind aNET which showed lymph node metastasis (LNM) in additional right hemicolectomy (RH), we evaluated high-risk histopathological parameters in aNETs and studied molecular parameters.

Conference:

Presenting Author: Bremer B

Authors: Bremer B, Kyriskozoglou V, El Moumni M, Heideman D, Walenkamp-Hageman A,

Keywords: Appendix NET, High-risk histopathological criteria, Serotonin, Driver mutation, Right Hemicolectomy,

#4560 Genetic trajectory and clonal evolution of non-functional pancreatic neuroendocrine tumours with lymph node and liver metastasis

Introduction: The systemic spread of panNETs is dominated by lymphatic reflux and portal system, exhibiting diverse patterns of metastasis without systematical genomic investigation.

Conference:

Presenting Author: Wu J

Authors: Wu J, Peng Y, Yin L, Jiang K, Li Q,

Keywords: Pan NET, Metastasis, Whole exome sequencing, Pylogenic tree,

#4422 A case report of an undifferentiated neuroendocrine carcinoma with an unknown primary site

Introduction: In the situation where the primary lesion remains unknown, high-grade poorly differentiated neuroendocrine carcinoma typically shows extensive metastasis at the time of clinical visit. Common metastatic sites include the liver, bones, lungs and brain, and the prognosis is extremely poor.

Conference:

Presenting Author:

Authors: Lv J, Tang Y,

Keywords: poorly differentiated neuroendocrine carcinoma, unknown primary origin,

#4394 Application of somatostatin receptor PET/CT in assisting preoperative lymph node evaluation and surgical decision-making for duodenal and pancreatic neuroendocrine neoplasms

Introduction: Preoperative precise staging of lymph nodes is crucial for determining surgical approach and extent for duodenal and pancreatic neuroendocrine neoplasms (DP-NENs), especially for small (≤2cm) DP-NENs.

Conference:

Presenting Author:

Authors: Xianze W, Bohui Y, Wenjia Z, Wensheng L, Meixi L,

Keywords: 68Ga-SSTR PET/CT, neuroendocrine neoplasm, lymph node metastasis, surgical decision-making,

#4379 Fully automated segmentation and lymph node metastasis prediction of non-functional pancreatic neuroendocrine tumours using deep learning

Introduction: Lymph node status is an important factor for the patients with NF-PanNETs with respect to surgical methods, prognosis, and recurrence. Our model serves as a non-invasive tool that supports clinical decision-making for precision surgical treatment in patients with NF-PanNETs.

Conference:

Presenting Author: Tang W

Authors: Tang W, Chen J,

Keywords: Non-functional pancreatic neuroendocrine tumour, deep learning, fully automated segmentation, imaging Informatics,