Читать книгу Animal Behavior for Shelter Veterinarians and Staff - Группа авторов - Страница 112

Intracranial neoplasia can be either primary or secondary, and, depending on the location within the brain and the character of the tumor, brain neoplasia can result in several different behavioral changes. Primary brain tumors originate from cells within the brain and meninges and are more likely to result in insidious, slowly progressive effects, whereas secondary tumors resulting from metastatic disease will usually result in acute changes.

Seizures, while the most recognizable, are not always the most common sign of a brain tumor. Other early behavioral and clinical signs of a brain tumor such as changes in behavior and mentation, visual deficits, circling, ataxia, head tilt, and cervical spinal hyperesthesia are often not appreciated. Reluctance to climb stairs, pacing, standing in corners, stumbling over objects, housesoiling, and agitation may also be seen.