Features of different types of headaches

Explanation

First let us learn the types of headaches that one would be inclined to get scanned.

1. Thunderclap headache-suggests SAH (Subarachnoid hemorrhage). CT scan WITHOUT contrast required.
2. Nocturnal headache that WAKES patient up from sleep-suggests malignant or other significant etiology. Imaging required.
3. Headache with neurological deficit-?stroke/tumor/complicated migraine
4. Headache progressing over weeks to months with loss of appetite and weight-malignant etiology. Imaging required.
5. Headache with fever and neck rigidity-meningitis/encephalitis(with altered sensorium)