Parinauds syndrome notes + mnemonic + video!
- Also known as the dorsal midbrain syndrome
- Caused by compression of the tectal plate (Where the superior and inferior colliculi sit!)
Clinical features:
- Supranuclear vertical gaze disturbance
- Upward gaze palsy (Downward gaze preference!)
- Pupillary light-near dissociation (Pupils respond to near stimuli, but not light)
- Collier's tucked lid sign or posterior fossa stare (Bilateral or unilateral eyelid retraction)
Seen in:
- Germ cell tumors (Most common cause of Parinauds syndrome)
- Pineal gland tumors (Pinealoma is rare)
- Also known as the dorsal midbrain syndrome
- Caused by compression of the tectal plate (Where the superior and inferior colliculi sit!)
Clinical features:
- Supranuclear vertical gaze disturbance
- Upward gaze palsy (Downward gaze preference!)
- Pupillary light-near dissociation (Pupils respond to near stimuli, but not light)
- Collier's tucked lid sign or posterior fossa stare (Bilateral or unilateral eyelid retraction)
Seen in:
- Germ cell tumors (Most common cause of Parinauds syndrome)
- Pineal gland tumors (Pinealoma is rare)
For those who want the image summary:
Parinauds syndrome notes + mnemonic |
That's all!
-IkaN
it was so helpful lol
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