see also:

• non-traumatic upper neck pain
• neckpain_lower
  • cervical disc prolapse - usually C5/6 with severe radicular neuropathic pain radiating down arm(s)
• cervical spine injury
• cervical lymphadenitis
• acute neck stiffness may also be due to
  • meningeal irritation
    • meningitis
    • subarachnoid haemorrhage (SAH)
  • pleural irritation
    • pneumonia
  • retropharyngeal abscess
  • wry neck / torticollis
  • muscle strain or spasm
• vertebral artery dissection may present with headache, tinnitus, bruit, TIA, stroke or as subarachnoid haemorrhage (SAH)
• internal carotid artery dissection may present with headache, tinnitus, bruit, TIA, stroke, Horner's syndrome, blindness and rarely, subarachnoid haemorrhage (SAH)