Aetiology
The trochlear nerve is the thinnest and has the longest intracranial course of the cranial nerves, and consequently, it is often damaged by:
- stroke
- trauma
Less common causes include:
- cerebellar tumours
- idiopathic
Reference
- Kim SY, Motlagh M, Naqvi IA. StatPearls [Internet]. Treasure Island (FL): July 2023. Neuroanatomy, Cranial Nerve 4 (Trochlear)
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