Mo1319 CORRELATION BETWEEN EUS-FNA AND SURGICAL SPECIMEN FOR KI67 INDEX AND TUMOR GRADING IN PANCREATIC NEUROENDOCRINE TUMORS:

Pancreatic neuroendocrine tumors (pNETs) are rare neoplasms comprising of 2% of all pancreatic tumors. They exhibit an extremely variable natural history. Ki67, a marker of cell proliferation is a significant prognostic discriminator for pNETs and is used to grade these tumors based on a system implemented by European Neuroendocrine Tumor Society (ENETS) and by the WHO. Historically, Ki67 indices are measured using histological specimens obtained through surgery. However, in the last decade, there is increasing utilization of endoscopic ultrasound guided fine needle aspiration (EUS-FNA) to obtain tumor specimens.

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