Abstract Library

#525 Pancreatic Neuroendocrine Tumors Associated with Mesenchimal Neoplasms of the GI Tract

Introduction: Neuroendocrine pancreatic tumors (NPT) are occasionally associated with mesenchimal tumors in neurofibromatosis type 1 but rarely in sporadic cases. We report five cases of NPT associated with other rare mesenchimal neoplasms of the GI tract, observed in our Department from 2003 to 2011.

Conference: 9th Annual ENETSConcerence (2012)

Presenting Author:

Authors: Moletta L, Milanetto A, Alaggio R, Sperti C, Pedrazzoli S,

Keywords: pancreatic neuroendocrine tumors, GIST, pancreatic resection,

#292 Early Detection of Gastric GIST Tumor in a Patient with Rectal Neuroendocrine Cancer – A Case Report

Introduction: A case of a 60-year-old man with rectal neuroendocrine cancer, in whom gastric GIST tumor was detected in March 2009, is presented.

Conference: 8th Annual ENETSConcerence (2011)

Presenting Author:

Authors: Mucha S, Komorowski J,

Keywords: GIST tumor, rectal NET,

#37 Gastric GIST with synchronous neuroendocrine tumor of the pancreas, Case Report and Literature Review

Introduction: The Gastrointestinal Stromal Tumors (GIST) are the most common mesenchymal tumors of the gastrointestinal tract. These are rare tumors with an incidence of 15 new cases per million per year. They often occur in individuals over the age of 40 years, without gender predominance. The clinical behavior is variable and benign tumors are the most common. They can develop anywhere in the GI tract, but are more frequent in the stomach and small intestine. The primary treatment, when located, is the surgical resection, which can be complemented with the use of imatinib. The occurrence of neuroendocrine tumors of the pancreas is rare, representing 1-5% of pancreatic cancers, and it is estimated that its incidence does not exceed 5 to one million. The tumors considered nonfunctioning (15-32% of pancreatic neuroendocrine tumors) are not associated with any syndrome, and are usually incidental. They have a slight predominance in males, and are more frequent in the 6th decade of life. Nonfunctioning tumors of islet cells are virtually all malignant tumors, and the treatment consists of surgical resection.

Conference: 7th Annual ENETSConcerence (2010)

Presenting Author: Tavares A

Authors: Tavares A, Ferreira A, Arruda Viveiros F, Cidade C, Maciel J,

Keywords: gastric GIST, pancreatic neuroendocrine tumor, synchronous,