DDx ⬇
Don't miss
- Subarachnoid hemorrhage
- Meningitis
- Temporal (giant cell) arteritis
- Glaucoma
- Hypertension
- Cerebral ischemia
- Arterial dissection (carotid or vertebral)
- Brain tumor
Intracranial
- Migraine
- Cluster headache
- Subarachnoid hemorrhage
- Meningitis
- Brain abscess
- Temporal (giant cell) arteritis
- Hypertension
- Caffeine, alcohol, or drug withdrawal
- Pseudotumor cerebri
- Subdural hemorrhage
- Cerebral ischemia
- Arterial dissection (carotid or vertebral)
- Arteriovenous malformation
- Head injury
- Neurocysticercosis
- Venous sinus thrombosis (intracranial venous thrombosis)
- Post-lumbar puncture
- Carbon monoxide poisoning
- Preeclampsia
Extracranial
- Tension headache
- Sinusitis
- Cervical arthritis
- Glaucoma
- Refractive error
- Dental abscess
- Otitis media
- Temporomandibular joint syndrome
- Depression
- Somatoform disorder (eg, somatization)
- Trigeminal neuralgia
- Glossopharyngeal neuralgia
Related DDx ⬆