Seizure & brain

Brain tumors in dogs are abnormal growths of cells within the brain.

Hearing loss and deafness are relatively rare symptoms in horses, and refer to the partial or complete inability to perceive auditory signals.

Hydrocephalus in dogs is the condition of too much fluid inside the head, often resulting in pressure on the brain.

A widow spider bite in cats, also referred to as latrodectism, is a potentially life-threatening condition resulting from the venom injected by a widow spider.

Cerebellar hypoplasia is a congenital malformation of the cerebellum in cats, which is the part of the brain responsible for balance and coordination. The root cause is due to incomplete development of the cerebellum in the womb.

Atlantoaxial instability (AAI) in cats is a rare condition affecting the first two vertebrae in the neck, known as the atlas and axis bones. These bones are responsible for head movement; instability in the joint between these two bones results in pain and damage to the spinal cord.

Vestibular disease in cats is a syndrome in which the balance system of the brain and middle ear is disrupted, causing incoordination. Symptoms include uncoordinated gait (ataxia), rapid eye movements (nystagmus), loss of balance, and head tilt.

Narcolepsy in cats is a chronic sleep disorder characterized by excessive sleepiness and cataplexy. Cataplexy is sudden collapse with complete loss of muscle tone which may be spontaneous or triggered by emotional stimuli, such as food. 

Meningitis is an uncommon, potentially life threatening condition that refers to inflammation of the meninges. Meninges are membranes that cover the brain and spinal cord. 

Atlantoaxial instability (AAI) in dogs affects the first two neck bones in the spine: the atlas (vertebra C1) and axis (vertebra C2), which give the head and neck stability. Changes to the bone(s) or ligaments in these joints can cause instability, resulting in dislocation and spinal cord compression. 

Cognitive dysfunction syndrome (CDS) is a chronic, progressive disease in senior cats characterized by a loss of cognitive performance, also called senility or dementia. Symptoms include disorientation, anxiety, changes to social interaction, changes to the sleep-wake cycle, and urinating or defecating outside of the litter box.

Narcolepsy is a sleep disorder affecting the brain characterized by excessive daytime sleepiness and spontaneous or emotion-triggered collapse (cataplexy). This is an uncommon condition in dogs, and can be caused by a genetic predisposition or in rare cases, a brain disorder or nerve disease.

Polyradiculoneuritis (PRN), also known as coonhound paralysis, is a condition in dogs where the immune system attacks the nervous system resulting in inflammation of nerves, primarily in the legs. The cause of most forms of PRN is unknown, but coonhound paralysis is linked to a reaction to raccoon saliva.

Facial paralysis in cats is a disorder of the cranial nerve that controls the muscles of the face. Possible causes include injury, ear infection, nerve inflammation, and tumors.

Trigeminal neuropathy is a disorder of the cranial nerve that controls the jaw muscles. It is extremely rare in cats. The underlying cause is not yet understood.

Dropped jaw (trigeminal neuropathy) is a disorder of the cranial nerve that controls the movement and sensitivity of the jaw in dogs.  The characteristic symptom is the inability to close the mouth.

Facial nerve paralysis describes the inability of a dog to move the muscles in its face because of a dysfunction in the nerves. This appears as ‘droopiness’ or sagging of the facial muscles, lips, ears, and eyelids.

Rabies is a rare, but fatal infectious viral disease. If a cat is suspected to be infected with the rabies virus, or has been bitten by a potentially rabid animal, immediate veterinary attention is required.

Canine epilepsy is a disorder where abnormal, uncontrolled electrical activity in the brain causes seizures.

Epilepsy is a chronic neurologic disorder characterized by repeated seizures happening over weeks, months, or years.

Motion sickness is the feeling of nausea during land, sea, or air travel caused by excessive or unpredictable movement.

Motion sickness (also known as car sickness) is when a dog shows signs of nausea and/or vomiting as a result of being in motion outside of their control.

Tick paralysis is primarily a disease of Australian cats with only rare occurrences reported in North American

A stroke, or cerebrovascular accident, in cats refers to a disruption of blood flow within the brain, preventing oxygen delivery to the tissue.

Dementia, or Cognitive Dysfunction Syndrome (CDS), is an age-related degenerative disease which affects memory and learning in dogs. Dogs with CDS present with a wide variety of progressive symptoms, including disorientation, anxiety, abnormal interactions, disturbances in  sleep/wake cycle, learning or memory changes, house soiling, and changes in activity levels.

Proventricular Dilatation Disease (PDD) is an incurable disease that affects the gastrointestinal and neurological systems of a variety of bird species. Proventricular Dilatation Disease (PDD) was originally called “Macaw Wasting Disease” and was first recognized and described in 1978.