Trigeminal autonomic cephalgia
Trigeminal autonomic cephalalgia refers to a group of primary headaches that occurs with pain on one side of the head in the trigeminal nerve area and symptoms in autonomic systems on the same side, such as eye watering and redness or drooping eyelids.
Types
TACs include- Cluster headache
- Paroxysmal hemicrania
- Short-lasting unilateral neuralgiform headache attacks with conjunctival injection and tearing (SUNCT)
- Short-lasting unilateral neuralgiform headache attacks with cranial autonomic symptoms
- Long-lasting autonomic symptoms with hemicrania