Abstract Library

#3052 Unique Metastatic Patterns in Neuroendocrine Neoplasms of Different Primary Origin

Introduction: Neuroendocrine neoplasms (NEN) can originate in different organs, e.g. in the gastro-enteric tract (GE), pancreas (P) or lung (L). Despite similarities in clinical and pathological characteristics in tumors of another origin, differences also exist. This might apply to metastatic patterns as well, but only limited data is available so far.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author:

Authors: Hermans B, Derks J, Willems A, Bilochvostenko M, Bayazit S,

Keywords: neuroendocrine neoplasms, stage IV, metastases, survival, epidemiology,

#3015 Biopsy Specimen Diagnosis in Pulmonary Carcinoids, A Shot in the Dark

Introduction: Pulmonary carcinoids (PCs) are rare well-differentiated neuroendocrine tumors, which can be separated into typical carcinoid (TC) and atypical carcinoid (AC). Advised treatment for local carcinoid disease is surgical resection using lobectomy, while parenchymal saving strategies such as sub-lobar or endobronchial resection might be considered for TC. In general, pre-operative diagnosis using a (transbronchial/transthoracic) biopsy sample is performed to demonstrate malignancy. However, TC and AC classification can solely be performed on surgical resection specimens, which may challenge pre-operative treatment decisions.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author: Moonen L

Authors: Moonen L, Derks J, Hermans B, Dingemans A, Speel E,

Keywords: pulmonary, neuroendocrine, carcinoid, biopsy, resection, diagnosis,

#2922 Clinicopathological Characteristics of Borderline Pulmonary Neuroendocrine Neoplasms

Introduction: According to the WHO 2015 classification pulmonary neuroendocrine neoplasms (NENs) are subdivided in carcinoids and neuroendocrine carcinoma (small cell lung carcinoma and large cell neuroendocrine carcinoma (LCNEC)), based on the presence of necrosis and mitotic index (MI). However, in some NENs a discrepancy is observed between grade of differentiation and proliferation rate.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author:

Authors: Hermans B, Derks J, Moonen L, Habraken C, von der Thusen J,

Keywords: Borderline tumor, NET grade 3, LCNEC, atypical carcinoid, WHO-classification,

#1778 Chemotherapy for Pulmonary Large Cell Neuroendocrine Carcinomas: Does the Regimen Matter?

Introduction: Metastatic pulmonary large cell neuroendocrine carcinoma (LCNEC) is a rare disease and the most effective chemotherapy regimen is debated, i.e. small cell lung carcinoma (SCLC) or non-small cell lung carcinoma (NSCLC) chemotherapy.

Conference: 14th Annual ENETSConcerence (2017)

Presenting Author: Derks J

Authors: Derks J, Suylen R, Thunnissen E, Den Bakker M, Groen H,

Keywords: lcnec, chemotherapy, nec, lung,

#1192 Clinical Characteristics and Overall Survival of Large Cell Neuroendocrine Carcinoma (LCNEC) Compared to Other Subtypes of Lung Cancer: Results of a Population-based Registry

Introduction: LCNEC is a rare non-small cell lung cancer subtype and clinical behavior is unclear.

Conference: 12th Annual ENETSConcerence (2015)

Presenting Author: Derks J

Authors: Derks J, Hendriks L, Damhuis R, Speel E, Dingemans A,

Keywords: LCNEC, lung,