Contrast enhanced computed tomography (CT) grading system
| Grade | CT morphology |
|---|---|
| A | Normal |
| B | Focal or diffuse gland enlargement; small intrapancreatic fluid collection |
| C | Any of the above plus peripancreatic inflammatory changes and <30% gland necrosis |
| D | Any of the above plus single extrapancreatic fluid collection and 30–50% gland necrosis |
| E | Any of the above plus extensive extrapancreatic fluid collection, pancreatic abscess and >50% gland necrosis |