Abstract:
Vocal cord paralysis may arise from intra and extralaryngeal
pathologies. Neurological pathology is a rare cause of unilateral vocal cord paralysis. The most common neurological
diseases inducing vocal cord paralysis are meningomyelocele,
hydrocephalus, the Chiari malformation and bulbar palsy.
The vocal cords are innervated by the superior and inferior
laryngeal nerves (recurrent laryngeal nerve) that are branches
of the vagal nerve. Compression of the vagal nerve for any
reason at the level it leaves the medulla oblongata can lead to
vocal cord paralysis (1).