Meningioangiomatosis
Meningioangiomatosis is a rare proliferative disorder of the vasculature of the CNS. It is most common in the brainstem, but unifocal and multifocal lesions have also been reported in the spinal cord. In some animals, these lesions can be found in conjunction with other abnormal masses, such as neoplasia or hamartomas.
Age of Onset: 3 months - 14 years of age. Young animals are more commonly affected
Sex Predisposition: Any sex of animal can be affected
Clinical Course:
Clinical signs typically worsen over time, but may vary significantly based on lesion location
Clinical signs typically worsen over time, but may vary significantly based on lesion location
Clinical Signs:
Behavioral/Mental Awareness
Seizures
Posture and Appearance
Ventral flexion of the neck
Leaning to the side
Head tilt
Anisocoria
Movement
Vestibular ataxia
Progressive tetraparesis
Spastic paresis
Circling
Proprioception
Reduced or absent conscious proprioception
Cranial Nerves
Facial nerve paralysis
Positional ventral strabismus
Positional rotary nystagmus
Diminished pupillary light reflexes
Special Functions (e.g. respiration; urination)
Fecal incontinence
Behavioral/Mental Awareness
Seizures
Posture and Appearance
Ventral flexion of the neck
Leaning to the side
Head tilt
Anisocoria
Movement
Vestibular ataxia
Progressive tetraparesis
Spastic paresis
Circling
Proprioception
Reduced or absent conscious proprioception
Cranial Nerves
Facial nerve paralysis
Positional ventral strabismus
Positional rotary nystagmus
Diminished pupillary light reflexes
Special Functions (e.g. respiration; urination)
Fecal incontinence
Brainstem and Spinal Cord
Unknown
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