|
HEADACHE (classified according to abruptness of onset) |
(click here for a list differential diagnoses according to pathology)
(click here for a list of serious causes of headache with a normal CT head)
| sudden / acute onset: |
subarachnoid haemorrhage dissection (of intra- or extra-cerebral arteries) pituitary apoplexy sub-dural venous sinus thrombosis thunderclap headache (a diagnosis of exclusion) |
| sub-acute (over hours or days): |
migraine meningitis encephalitis temporal arteritis intra-cerebral haemorrhage subdural haematoma tension headache cluster headache following head injury drugs, e.g. vasodilators |
| chronic (weeks or months): |
temporal arteritis tuberculous meningitis intra-cranial tumour cerebral abscess subdural haematoma benign intracranial hypertension psychogenic causes following head injury Paget's disease of skull drugs, e.g. vasodilators |
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