| 0 |
Intact, no defect |
| 1 |
Defect restricted to mucosa/submucosa |
| 2 |
Defect extends to muscularis externa |
| 3 |
Defect extends to adventitia |
| 4 |
Regional peritoneal involvement |
|
|
Score
|
Tissue proliferation
|
|
| 0 |
Absent |
| 1 |
Minimal, immature tissue restricted to edges of anastomosis |
| 2 |
Mild with involvement of <50% of anastomosis |
| 3 |
Mild with involvement of >50% of anastomosis |
| 4 |
Marked, diffuse tissue repair and maturation |
|
|
Score
|
Inflammation
|
|
| 0 |
Absent |
| 1 |
Rare, minimal, ~1-5/per high power field (hpf; 40x obj) |
| 2 |
Mild, multifocal or locally extensive ~5—10/hpf |
| 3 |
Moderate confluent infiltrate with preservation of normal tissue architecture |
| 4 |
Packed, overwhelming infiltrate with effacement of regional architecture |
|
|
Score
|
Necrosis
|
|
| 0 |
Absent |
| 1 |
Minimal, focal, nearly imperceptible |
| 2 |
Mild, focally extensive, inconspicuous |
| 3 |
Moderate, multifocal or locally extensive, readily apparent |
| 4 |
Severe, regionally extensive, overwhelming with effacement of regional architecture |
|
|
Score
|
Fibrosis
|
|
| 0 |
Absent |
| 1 |
Minimal, e.g., narrow band, ~1—2 cell layers thick |
| 2 |
Mild, e.g., thin, localized band, <~10 cell layers thick |
| 3 |
Moderately thick, contiguous band along length of tissue/ structure |
| 4 |
Extensive zone with regional extension effacement of local architecture |
