Neuroendocrine tumors (NETs) are heterogeneous malignancies arising from the diffuse
neuroendocrine system. They frequently originate in the gastroenteropancreatic (GEP) tract …

Gastrointestinal neuroendocrine tumors are rare slow-growing tumors with distinct
histological, biological, and clinical characteristics that have increased in incidence and …

Neuroendocrine tumors are a heterogeneous group of tumors originating in various
anatomic locations. The management of this disease poses a significant challenge because …

This is one of a series of statements discussing the use of GI endoscopy in common clinical
situations. The Standards of Practice Committee of the American Society for Gastrointestinal …

Gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs) are composed of cells with
a neuroendocrine phenotype. The old and the new WHO classifications distinguish between …

With over thirty different hormones identified as being produced in the gastrointestinal (GI)
tract, the gut has been described as 'the largest endocrine organ in the body'(Ann. Oncol …

Ki67 index is now an essential part of classification of pancreatic neuroendocrine tumors.
However, its adaptation into daily practice has been fraught with challenges related to …

Rectal neuroendocrine neoplasms (r-NENs) are considered among the most frequent
digestive NENs, together with small bowel NENs. Their incidence has increased over the …

Gastroenteropancreatic neuroendocrine tumors (GEP-NETs) are a heterogeneous group of
neoplasms that arise from cells of the diffuse neuroendocrine system and are characterized …

Appendiceal neuroendocrine neoplasms (ANENs) usually present as incidental findings at
the time of appendectomy for acute appendicitis. They are rare, accounting for only 0.5–1 …