Chronic pancreatitis - Ammann's diagnostic criteria: The Zurich Classification for Alcoholic Chronic Pancreatitis

Ammann's diagnostic criteria for chronic pancreatitis were published with the 1997 Zurich international workshop on chronic pancreatitis.

1) Recurrent pancreatitis and
2) ≥1 of the following:

  • Calcifications in the pancreas
  • Moderate or severe ductal lesions as defined by the Cambridge criteria
  • Typical pancreatic histology of an adequate surgical specimen
  • Persistent exocrine insufficiency (for ≥2 years)


1. Ammann RW. A clinically based classification system for alcoholic chronic pancreatitis: summary of an international workshop on chronic pancreatitis. Pancreas. 1997 Apr;14(3):215–21
2. Tytgat G, Tytgat S. Grading and Staging in Gastroenterology. Thieme; 2008