<unk>  (also known as Parsonage-Turner syndrome) is a rare syndrome of unknown etiology affecting mainly the lower motor neurons of the<unk>  plexus and/or individual nerves or nerve branches.<unk>  usually is characterized by the<unk>  onset of excruciating unilateral shoulder pain, followed by flaccid paralysis of shoulder and parascapular muscles after several days.
Acute brachial neuritis
Anterior spinal artery syndrome
Acute motor axonal neuropathy
Vertebral artery dissection
Bell's palsy
Anton-Babinski syndrome
Acute flaccid myelitis
Parinaud's syndrome