13 Dangerous Causes of Headache: - subarachnoid hemorrhage: family history, PCKD, known berry aneurysm, sudden and maximal intensity at onset, posterior location - intracerebral hemorrhage: trauma, coagulopathy, decreased level of consciousness, hypertension - CNS infection: fever, immunocompromise, CNS instrumentation, recent head/face infection, meningismus - increased intracranial pressure: slowly progressive, cancer history, worse in morning, worse with head in dependent position, papilledema - carbon monoxide toxicity: contacts with similar illness, locationality (worse at home or at work) - acute angle closure glaucoma: unilateral anterior location, precipitated by darkness, change in vision, red eye - temporal (giant cell) arteritis: elderly, temporal location, jaw claudication, shoulder girdle symptoms - cervical artery dissection: unilateral pain involving neck/face, trauma history - cerebral venous sinus thrombosis: thrombophilia, neurologic signs/symptoms in non-arterial distribution, eyelid edema, proptosis - hypertensive encephalopathy: altered mentation, marked hypertension, improves with antihypertensive therapy - ENT/dental infection: ear, sinus, dental findings - idiopathic intracranial hypertension: young overweight female, hormone use, vision changes - preeclampsia: late pregnancy or postpartum #Diagnosis #Headache #Killers #Lethal #Fatal #Dangerous #Deadly #Differential
