Abstract
Neuroendocrine Neoplasm are a group of cancers that start in neuroendocrine cells. These cancers may also be referred to
neuroendorin tumor, or even Carcinoids. Neuroendocrine Neoplasm occur when neuroendocrine cells stop working normally
and start to grow or behave abnormally. Surgery has a large part in treatment because it is the only potentially curative
therapeutic modality if resection can be complete. We have 2 types of Neuroendocrine Neoplasm; NETs (neuroendocrine
tumours) are called ‘well-differentiated’ and tend to have a slow to moderate growth pattern and NECs (neuroendocrine
carcinomas) - are called ‘poorly differentiated’ and tend to grow rapidly with significant metastatic potential. In this case we
will study a duodenal neuroendocrine tumor simulating a neuroendocrine carcinoma at the beginning, an MRI was carried out
revealing a duodenal neuroendocrine mass judged to be extirpable. Pancreaticoduodenectomy (PD) according to Whipple was
made confirming the neuroendocrine nature.