Neuroendocrine adenomas of the middle ear (NEAME) are rare tumors.1-4 Whereas neuroendocrine cells are normally found in the lung and gastrointestinal tract, they are normally not found in the middle ear (ME) mucosa.1-6 Although neuroendocrine tumors were initially believed to originate from the neuroendocrine cell system, it is now known that they may originate from tissue that lacks neuroendo...

Gastroenteropancreatic neuroendocrine tumors (GEP NET) represent heterogenous group of very rare neoplasms. Nevertheless, these tumors have been increasingly diagnosed recently. Authors present own experience with surgical treatment of gastrointestinal neuroendocrine tumors. the aim of the study was to analyse retrospectively own material of patients with gastrointestinal neuroendocrine tumors ...

Neuroendocrine tumors of the female reproductive tract are a heterogeneous group of neoplasms that display various histologic findings and biologic behaviors. In this review, the classification and clinicopathologic characteristics of neuroendocrine tumors of the female reproductive tract are described. Differential diagnoses are discussed, especially for non-neuroendocrine tumors showing high-...

Neuroendocrine tumors are relatively rare tumors with an incidence of 5.25 per 100,000 per year in the United States [1]. They range from well differentiated slow growing tumors to highly aggressive poorly differentiated tumors [2]. The common primary sites of neuroendocrine carcinomas are lung and gastrointestinal tract. However, 3-5 % of these tumors are diagnosed as metastatic disease with u...

Neuroendocrine tumors represent a heterogeneous group of neoplasms that arise from neuroendocrine cells and secrete various peptides and bioamines. While gastrointestinal neuroendocrine tumors, commonly called carcinoids, account for about 2/3 of all neuroendocrine tumors, they are relatively rare. Small intestine neuroendocrine tumors originate from intestinal enterochromaffin cells and repres...

BACKGROUND A large fraction of murine tumors induced by transgenic expression of SV40 large T antigen (SV40 TAg) exhibits a neuroendocrine phenotype. It is unclear whether SV40 TAg induces the neuroendocrine phenotype by preferential transformation of progenitor cells committed to the neuroendocrine lineage or by transcriptional activation of neuroendocrine genes. METHODOLOGY/PRINCIPAL FINDIN...

Cystic pancreatic neuroendocrine tumors represent 13% of all neuroendocrine tumors. The aim of this study is to analyze the phenotype and biologic behavior of resected cystic neuroendocrine tumors. A systematic review and meta-analysis were conducted until September 2016 using a search in Medline, Scopus, and EMBASE with the terms "cystic pancreatic endocrine neoplasm", "cystic islets tumors" a...

Special AT-rich sequence binding protein-2 (SATB2) is selectively expressed in the lower gastrointestinal tract mucosa and has been identified as a sensitive marker for colorectal adenocarcinomas. The goal of this study was to investigate the expression of SATB2 in well-differentiated neuroendocrine tumors to explore its potential as a diagnostic marker for hindgut well-differentiated neuroendo...

Florian Bösch Seite KKK 6 Abstract