Table 3.
Summary of the results for semiquantitative analyses of various histopathological features in hepatic trematode infected livers of the harbor porpoise, Dall's porpoise, and Hubbs' beaked whale.
| Species | Lymphoid follicle | Periportal fibrosis | Bridging fibrosis | Iron deposition (hepatocyte) | Iron deposition (Kuppfer cell) | Ductular reaction | |
|---|---|---|---|---|---|---|---|
| Harbor porpoise | Median | 3.0 | 4.0 | 3.0 | 0.0 | 3.0 | 3.0 |
| Mean | 3.0 | 3.8 | 2.9 | 0.3 | 2.5 | 2.9 | |
| SD | 1.1 | 0.5 | 1.2 | 0.7 | 0.8 | 0.6 | |
| Dall's porpoise | Median | 3.0 | 4.0 | 3.0 | 0.0 | 2.0 | 2.5 |
| Mean | 2.9 | 3.9 | 3.3 | 0.1 | 2.1 | 2.9 | |
| SD | 1.1 | 0.4 | 0.7 | 0.4 | 0.8 | 1.0 | |
| Hubbs' beaked whale | Median/Mean | 1.0 | 4.0 | 3.5 | 0.5 | 1.5 | 4.0 |
| SD | 0 | 0 | 0.7 | 0.7 | 2.1 | 0 |
Grading scale: 0, none; 1, minimal; 2, mild; 3, moderate; 4, severe.