Table 3 Criteria for harderian gland lesion score
Lesion score | Histopathological changes | |
|---|---|---|
Score 0 | normal structure of harderian gland | |
Score 1 | congestion with slight depletion of lymphoid aggregates | |
Score 2 | moderate depletion of lymphoid aggregates | |
Score 3 | excessive depletion of lymphoid aggregates | |
Score 4 | lymphocytolysis accompanied by necrosis, desquamation, and exudation | |