Quadrigeminal (Arachnoid) Cyst
Quadrigeminal (arachnoid) cysts are abnormal accumulations of cerebrospinal fluid within the arachnoid membrane, associated with the third and/or fourth ventricles leading to compression of the adjacent parenchyma
Age of Onset: Any age of animal can be affected (mean age of 3-4 years)
Sex Predisposition: Any sex of animal can be affected, although males may be more commonly affected than females
Clinical Course:
Clinical signs may worsen over time
Clinical signs may worsen over time
Clinical Signs:
Behavioral/Mental Awareness
Seizures (focal or generalized)
Behavioral changes
Compulsive walking
Head pressing
Movement
Ataxia
Hypermetria
Wide-base stance
Intention tremor
Proprioception
Proprioceptive deficits
Cranial Nerves
Menace deficit
Positional nystagmus
Behavioral/Mental Awareness
Seizures (focal or generalized)
Behavioral changes
Compulsive walking
Head pressing
Movement
Ataxia
Hypermetria
Wide-base stance
Intention tremor
Proprioception
Proprioceptive deficits
Cranial Nerves
Menace deficit
Positional nystagmus
Intracranial- middle and caudal cranial fossa
Unknown
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