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Outcome and histological findings.
| Postoperative week | ||||
|---|---|---|---|---|
|
|
||||
| 20 | 30 | 40 | 50 | |
| Rats examined, n | 5 | 10 | 10 | 15 |
| Histology, n (%) | ||||
| Proliferative hyperplasia | 5 (100) | 10 (100) | 10 (100) | 15 (100) |
| Squamous dysplasia | 1 (20) | 5 (50) | 6 (60) | 6 (40) |
| Squamous cell carcinoma | 0 (0) | 1 (10) | 1 (10)a | 2 (13)a |
| Barrett’s metaplasia | 2 (40) | 7 (70) | 10 (100) | 15 (100) |
| Adenocarcinoma | 0 (0) | 1(10) | 4 (40) | 6 (40) |
One rat exhibited two types of carcinoma.
