Abstract Library

#3867 Radiological follow-up (FU) in resected pulmonary typical carcinoids (pTC) – Do the benefits outweigh the risks?

Introduction: Primary resection is treatment of choice of pulmonary carcinoids (PC) and recurrences occur ~7% of TC and ~35% of atypical carcinoid (AC). Because of a risk of late recurrence, even in TC, long-term radiological FU is generally advised. As PC are frequent in relatively young pts, there is a risk of late radiation-induced cancer.

Conference:

Presenting Author: Heijboer F

Authors: Heijboer F, Mulders T, van Straten M, Moonen L, Speel E,

Keywords: pulmonary carcinoid, typical carcinoid, atypical carcinoid, primary resection, follow-up, ct scan,

#3462 Development and verification of a new monoclonal OTP specific antibody for pulmonary carcinoid diagnostics

Introduction: Histology-based grading of pulmonary carcinoids (PC) is problematic and subject to high interobserver variation. Orthopedia homeobox (OTP) has shown to be an excellent prognostic marker for PCs, also indicated by the WHO. However, absence of a reliable routinely applicable monoclonal OTP antibody (mAb) hampers implementation in routine diagnostics.

Conference:

Presenting Author: Speel E

Authors: Moonen L, Derks J, Lap L, Marijnissen B, van den Bosch T,

Keywords: Orthopedia Homeobox, pulmonary carcinoid, monoclonal antibody, clinical diagnostics,

#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,

#1936 The Expression of IGF Signaling Pathway Genes Is Frequently Elevated in Pancreatic Neuroendocrine Tumors, but Is Downregulated in Metastases

Introduction: Studies have implicated EGFR, IGF and mTOR signaling pathways in the regulation of pNET growth. Interpretation of these studies is complex due to tumor subtype heterogeneity and differences in molecular analysis.

Conference: 14th Annual ENETSConcerence (2017)

Presenting Author: Speel E

Authors: Henfling M, Versleijen-Jonkers Y, Starke A, Riedl R, Sprij-Mooij D,

Keywords: , ,

#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,