Parinaud's syndrome
Parinaud's syndrome is a rare medical condition, often caused by tumors in or near the pineal gland in the brain. It is characterized by a group of abnormalities of eye movement and pupil dysfunction.
Symptoms[edit | edit source]
The symptoms of Parinaud's syndrome include:
- Vertical gaze palsy: This is the inability to move the eyes up and down.
- Convergence-retraction nystagmus: This is a jerky eye movement that occurs when trying to look upward.
- Light-near dissociation: This is when the pupils do not react to light but do react to accommodation (focusing on a near object).
- Eyelid retraction: This is a condition where the upper eyelids are retracted and the white part of the eye above the iris is visible.
Causes[edit | edit source]
Parinaud's syndrome is often caused by pinealoma, a tumor of the pineal gland. Other causes can include brainstem lesions, hydrocephalus, midbrain infarction, and multiple sclerosis.
Diagnosis[edit | edit source]
Diagnosis of Parinaud's syndrome is based on the presence of the characteristic symptoms and is confirmed by MRI or CT scan of the brain.
Treatment[edit | edit source]
Treatment of Parinaud's syndrome is directed at the underlying cause. This may involve surgery to remove a tumor, radiation therapy, or medications to control symptoms.
Prognosis[edit | edit source]
The prognosis for Parinaud's syndrome depends on the underlying cause. With treatment, some people may experience a significant improvement in symptoms.
See also[edit | edit source]
Parinaud's syndrome Resources | ||
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