title: Where SUNCT contacts TN: a case report.
abstract: BACKGROUND
  Short-lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT) and trigeminal neuralgia (TN) are unilateral painful conditions that can share the same triggering factors, autonomic features and the main location, as well as the cyclically recurrent crises. Both these syndromes are associated with a high percentage of findings of vascular malformation touching the trigeminal nerve, suggesting a pathophysiological relationship.
  
  
  METHODS
  In this paper, we report a new case with the main purpose to shine a light on the pathophysiology of these conditions.
  
  
  CONCLUSIONS
  Many authors described a SUNCT case deriving from TN or vice versa, suggesting that these conditions are strongly related. Every case of transformed TN or SUNCT should therefore be reported to gather and compare further information.
authors.affiliation: Clinical Neurology, University Hospital "Spedali Civili,", Brescia, Italy.
authors.forename: Fabrizio
authors.initials: F
authors.lastname: Rinaldi
authors.forename: Renata
authors.initials: R
authors.lastname: Rao
authors.forename: Elisabetta
authors.initials: E
authors.lastname: Venturelli
authors.forename: Paolo
authors.initials: P
authors.lastname: Liberini
authors.forename: Stefano
authors.initials: S
authors.lastname: Gipponi
authors.forename: Elisa
authors.initials: E
authors.lastname: Pari
authors.forename: Eluisa
authors.initials: E
authors.lastname: Sapia
authors.forename: Alessandro
authors.initials: A
authors.lastname: Padovani
mesh_terms: D005260:Female; D006801:Humans; D008875:Middle Aged; D050798:SUNCT Syndrome / Q000150:complications* / Q000175:diagnosis*; D014277:Trigeminal Neuralgia / Q000150:complications* / Q000175:diagnosis*
keywords: SUNCT; neurovascular contact; trigeminal neuralgia; vascular malformation