#4300
A retrospective comparison of preoperative characteristics and surgical outcomes in small intestine neuroendocrine neoplasms (SiNENs) and small intestine adenocarcinoma
Introduction:
SiNENs are complex tumours with unique behaviour. Despite 30 years of progress, limited data and diagnostic challenges hinder understanding, complicating assessment of their biology and outcomes.
Conference:
Presenting Author:
Zamparas A
Authors:
Herzog T,
Zamparas A,
Uhl W,
Strotmann J,
Höhn P,
Keywords:
small intestine NEN,
small bowel adenocarcinoma,
NET,
Chromogranin A,
5-year follow-up,
10-year follow-up,
#1490
Even Malignant Appendiceal Neuroendocrine Tumors Exhibit No Recurrent Chromosomal Alterations
Introduction:
Neuroendocrine tumors (NETs) of the midgut are located in the ileum (iNET), caecum or appendix (aNET). Despite of the similar origin, NETs of the ileum and the appendix behave remarkably different. iNETs show high malignant potential, which manifests with early lymph node or liver metastases. Genetically, the loss of chromosome 18 (Ch18) in 60-74% of cases is the most frequent alteration in iNETs. aNETs are often incidental findings, rarely show metastases, and no chromosomal alterations are known.
Conference:
13th Annual ENETSConcerence (2016)
Presenting Author:
Sipos B
Authors:
Nann D,
Nieser M,
Sperveslage J,
Henopp T,
Vokuhl C,
Keywords:
NET,