Total Pancreatectomy with Islet Autotransplantation: New Insights on the Pathology and Pathogenesis of Chronic Pancreatitis from Tissue Research.

Total pancreatectomy with islet autotransplantation (TPIAT) is a surgical procedure undertaken in some patients with severe pain or disability from recurrent acute and chronic pancreatitis (CP). TPIAT provides a rare opportunity to study human pancreas tissue from patients affected with pancreatitis, and particularly from patients with genetic forms of pancreatitis. Research to date suggests distinct histopathology and potentially differential pathophysiology of distinct etiologies of CP. Histopathology specimens have helped better define the success and limitations of clinical diagnostic imaging tools, such as magnetic retrograde cholangiopancreatography and endoscopic ultrasound.