Table 5 Description of the histopathological features of the oral lesions identified indicating the frequency with which each feature was identified in each lesion category.
From: Profiling oral and digital lesions in sheep in Ireland
Feature | Oral Erosive/Ulcerative (n = 25) | Oral exophytic (n =19) |
|---|---|---|
Congestion and perivascular cuffing of dermal vessels (sub-categories were identified depending upon the predominant leucocyte type). | • Neutrophils (6 of 21) | • Neutrophils (1 of 18) |
• Lymphocytes (6 of 21) | • Lymphocytes (4 of 18) | |
• Macrophages (1 of 21) | • Plasmacytes (1 of 18) | |
• Plasmacytes (2 of 21) | • Mixed leucocyte population (12 of 18) | |
• Mixed leucocyte population (6 of 21) | ||
Degeneration of epithelial cells /keratinocytes |  | • Vacuolar degeneration (12 of 13) |
• Reticular degeneration (10 of 13) | ||
• Ballooning degeneration (4 of 13) | ||
Dermal haemorrhage | 1 | 1 |
Epidermal/Mucosal erosion | 6 | 4 |
Epidermal/Mucosal hyperplasia | 14 | 15 |
Epidermal/Mucosal ulceration | 10 | 2 |
Epidermal micropustules | 4 | 10 |
Intra-lesional bacteria | 6 | 1 |
Serocellular crust formation | 6 | 7 |
Surface fibrinous exudate | 5 | 0 |
Thrombosis of dermal vessels | 0 | 3 |