Trigeminal autonomic cephalalgia

Trigeminal autonomic cephalgia (TAC) is a group of primary headaches that are characterized by unilateral headache in a trigeminal distribution and ipsilateral vegetative manifestations. This group of diseases includes:
 * cluster headache;
 * chronic paroxysmal hemicrania;
 * hemicrania continua;
 * SUNCT syndrom.

TACs are relatively rare and therefore often neglected in primary care. All diseases from the TAC group also occur in pediatric practice.

The importance of being able to recognize TACs is that they are highly treatable, although highly selective in their response to treatment.

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