Abstract Library

#4642 Establishing a standardised histopathological grading system for mesenteric fibrosis in small intestinal neuroendocrine tumours

Introduction: Mesenteric fibrosis (MF) frequently develops around mesenteric metastasis in small intestinal neuroendocrine tumour (SI-NET) patients. Since MF is not always detected radiologically, histopathological examination is considered the gold standard. However, there is no uniform histopathological scoring system for MF correlated with clinical data.

Conference:

Presenting Author:

Authors: van der Slik E, Feelders R, Hofland L, Hall A, Iyer A,

Keywords: small intestinal neuroendocrine tumour, mesenteric fibrosis, grading system,

#4638 Prognostic role of the kynurenine/tryptophan pathway and inflammatory cytokines in neuroendocrine tumour progression: A cross-sectional analysis

Introduction: Indoleamine-2,3-dioxygenase (IDO) converts L-tryptophan (T) to L-kynurenine (K) resulting in an immunosuppressive microenvironment.

Conference:

Presenting Author: Mancini C

Authors: Mancini C, Pecora G, Salerno G, Lionetto L, Visco V,

Keywords: Neuroendocrine Tumour, tryptophan, kynurenine, cytokines, immunotherapy, Indoleamine-2-3-dioxygenase,

#4637 Non-functional retroperitoneal paraganglioma in a young patient: A case report

Introduction: Paragangliomas are neuroendocrine tumours arising in the parasympathetic nervous system, outside the adrenal gland. Retroperitoneal location is extremely rare. Non-functional paragangliomas often represent a diagnostic challenge.

Conference:

Presenting Author:

Authors: Aris H, Saidi M, Lahfa I,

Keywords: retroperitoneal paraganglioma, surgery, monitoring,

#4608 A complex and rare association of neuroendocrine and endocrine neoplasms: A case report

Introduction: Neuroendocrine tumours (NETs) are sporadic or genetically inherited heterogenous neoplasms affecting multiple sites.

Conference:

Presenting Author: Cerroni L

Authors: Cerroni L, Filice A, Feola T, Sesti F, Vincenzi L,

Keywords: cushing disease, atypical carcinoid, ileal net, genetics,

#4470 Demystifying DIPNECH: Updates from a new longitudinal patient registry

Introduction: Diffuse idiopathic pulmonary neuroendocrine cell hyperplasia (DIPNECH) was first characterised in 1992 with a case series describing 6 patients with neuroendocrine cell hyperplasia, with cough and dyspnoea. Since that time, DIPNECH has remained understudied.

Conference:

Presenting Author:

Authors: Skotte E, Linden A, Libre M, Lippincott E, Cass A,

Keywords: DIPNECH,