Can pancreatic neuroendocrine tumour biopsy accurately determine pathological characteristics?

Assessment of the pathological characteristics of pancreatic neuroendocrine tumours is crucial for appropriate management. We compared preoperative pathological data with surgical specimens for accuracy.Surgical patients with pancreatic neuroendocrine tumours who underwent preoperative endoscopic ultrasound-guided fine needle aspiration of the primary tumour or biopsy of liver metastasis were retrospectively included. Tumour differentiation and...