Abstract Library

#4455 Multicentric ENETS morphological and molecular appraisal of high-grade gastroenteropancreatic neuroendocrine neoplasms (HG-GEP-NEN): Distinguishing NET G3 from NEC

Introduction: HG-GEP-NEN are classified into neuroendocrine tumours grade 3 (NET G3) and neuroendocrine carcinomas (NEC). This distinction is crucial as it affects patient prognosis and treatments but can be challenging.

Conference:

Presenting Author: Tihy M

Authors: Tihy M, Solstad O, Oudijk L, Bräutigam K, Bani M,

Keywords: HG-GEP-NEN, neuroendocrine neoplasm, NEC, NET G3, Classification, Review, criteria, diagnosis, pathology,

#4311 Characterisation of patients diagnosed with metastatic head and neck paraganglioma treated at an oncology referral institution in Colombia

Introduction: Head and neck paragangliomas (HNPGL) are rare tumours. Multiple risk factors associated with the risk of metastasis have been described, although much of the available information corresponds to the group of Pheochromocytoma and Paragangliomas, not necessarily extrapolatable to metastatic HNPGLs.

Conference:

Presenting Author: Fierro L

Authors: González A, Puerto J, Fierro L, Zarama A, Caicedo L,

Keywords: Paraganglioma, head and neck, metastasis, survival,

#4224 Uncommon manifestations in type 4 familial paraganglioma syndrome – A large cohort of patients harbouring the SDHB p.Q214Ter variant

Introduction: Familial paraganglioma type 4 syndrome (PPGL4) is caused by a germline pathogenic variant (PV) in the SDHB gene. Patients harbouring germline SDHB PV have a higher risk of developing paragangliomas and pheochromocytomas. PPGL4 is considered a higher-risk syndrome for aggressive, and metastatic, abdominal-thoracic paragangliomas compared with other familial paraganglioma syndromes.

Conference:

Presenting Author: Halperin R

Authors: Halperin R, Jabarin A, Tirosh A,

Keywords: paraganglioma, pheochromocytoma, sdhb, hereditary,

#3913 Clinicopathological characteristics and survival of head and neck neuroendocrine carcinoma

Introduction: Neuroendocrine carcinoma (NEC) of head and neck including epidemiology, primary site, treatment, and prognosis remains sparse.

Conference:

Presenting Author: Cai W

Authors: Cai W, Ge W, Zhang J, Yuan Y, Hu H,

Keywords: Neuroendocrine carcinoma, Head and neck,

#3625 Characterization, prognosis, and treatment of patients with head & neck well-differentiated neuroendocrine tumors – A retrospective study of the French GTE-ENDOCAN RENATEN and REFCOR networks

Introduction: Head & neck well-differentiated neuroendocrine tumors (HN NET) are rare, locally aggressive, and barely known tumors compared to HN neuroendocrine carcinoma.

Conference:

Presenting Author: Boilève A

Authors: Boilève A, Camby S, Morinière S, Le Bras M, Vérillaud B,

Keywords: Head & neck tumor, carcinoid tumor, well-differentiated net, prognosis, treatment,