Anatomic distribution of pancreatic endocrine tumors

Neuroendocrine Tumors of the Pancreas

“…Distal pancreatectomy removes the extremely rare distally located gastrinomas, because most tumors are located in the "gastrinoma triangle" (pancreatic head, duodenum, and surrounding lymph nodes) [104]. Lymphadenectomy should always be performed, even in the absence of a pancreatic or duodenal primary, because primary lymph node gastrinomas have been reported [57].…”

Role of Endoscopic Ultrasound in Evaluation of Pancreatic Neuroendocrine Tumors - Report of 22 Cases from a Tertiary Center in Iran

“…According to literature review 75% of insulinoma and glucagonoma are located in the body and tail of pancreas left to the superior mesenteric artery (SMA) (Howard et al, 1990) while in our study 57% of tumors were located in the head of pancreas and more than 90% were solitary beta cell with exception of one patient who had insulinoma with multiple lesions.…”

Pancreatic Neuroendocrine Tumors: Emerging Management Paradigm

“…Approximately 25% of patients will present with diarrhea as primary manifestation without peptic ulcer disease (Perry and Vinik, 1995). Gastrinomas have a strong predilection for a "gastrinoma triangle" that includes the pancreatic head, first two-thirds of the duodenum and the porta hepatis (Howard et al, 1990). A significant proportion of gastrinomas are malignant, with up to onethird of patients presenting with liver metastases (Mittendorf et al, 2006).…”