Table 2. Morphology of the six intraductal papillary pancreatic tumours.
| Patient | Type | Extent and secondary changes |
|---|---|---|
| 1 | IPMC (I) | Severe dysplastic changes practically confined to the body and tail with early invasion of the body |
| Main duct and side branches. Slight obstructive pancreatitis of the head and moderate/severe of the body and tail | ||
| 2 | IPMC (N) | Widespread severe dysplasia in main duct and side branches throughout the pancreas |
| Severe obstructive pancreatitis of the whole organ | ||
| 3 | IPMA | Slight dysplasia in the main duct and side branches of the head and in few scattered foci of the body and tail |
| Severe obstructive pancreatitis of the head, slight in body and tail | ||
| 4 | IPMC (susp.I) | Severe dysplasia with focus of suspected invasion |
| Changes confined to the main duct and side branches of head and neck | ||
| Severe obstructive pancreatitis of the whole organ | ||
| 5 | IPMC (N) | Widespread moderate-to-severe dysplasia in main duct and side branches of the entire pancreas |
| Moderate obstructive pancreatitis of the head – severe in body and tail | ||
| 6 | IPMC (N) | Focal dysplasia in side branches of the head and large focus in main duct of the body with moderate and severe dysplasia |
| Moderate obstructive pancreatitis of the head – severe in body and tail |
IPMA = intraductal papillary mucinous adenoma; IPMC = intraductal papillary mucinous carcinoma; N = noninvasive; I = invasive; susp.I = suspicious for invasion.