Short-lasting unilateral neuralgiform headache with cranial autonomic symptoms (SUNA) can be diagnosed if certain criteria are met.



(1) >= 20 attacks (below)

(2) unilateral supraorbital, orbital or temporal stabbing pain that lasts up to 10 minutes (trigeminal distribution)

(3) one or more of the following cranial nerve autonomic symptoms:

(3a) conjunctival injection or tearing/lacrimation but not both (presence of both indicates SUNCT)

(3b) nasal congestion and/or rhinorrhea

(3c) eyelid edema

(3d) ipsilateral sense of aural fullness or peri-aural swelling

(3d) facial flushing

(3e) ipsilateral ptosis and/or miosis

(3f) ipsilateral forehead and facial sweating

(4) during periods of activity there may be >= 1 attacks per day for more than half the time

(5) exclusion of other diagnosis


Differential diagnosis:

(1) short-lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT) – see 17.11.12 and 17.14.06

(2) cluster headache


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