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The number of patients with retroperitoneal margin involvement by definition
| Based on definition by CAP (0 mm rule) | Based on 1 mm rule | |
|---|---|---|
| SMAM only | 5 | 2 |
| SMVM only | 5 | 5 |
| SMAM and SMVM | 3 | 8 |
| TOTAL (R1) cases | 13 | 15 |
| SMAM ± SMVM & PUPM | 1 | 5 |
| PUPM only | - | - |
| Total (R1) | 14 | 20 |
CAP, College of American Pathologists; PUPM, Posterior surface of the uncinate process margin; SMAM, Superior mesenteric artery margin; SMVM, Superior mesenteric vein margin.
