title: Familial SUNCT in mother and son.
abstract: BACKGROUND
  Trigeminal autonomic cephalalgias comprise a heterogeneous group of lateralized headaches associated with ipsilateral autonomic symptoms. They are usually localized within the territory of one or more rami of the trigeminal nerve, but may be localized outside its cutaneous territory. Although these headaches are considered primary disorders, the evidence supporting their genetic nature is lacking, particularly concerning their neuralgic forms, with the exception of a familial case described partly based on a historical account.
  
  
  METHODS
  We report on a mother and son with episodic, short-lasting, intense, paroxysmal headaches, with the same localization in the left retroauricular region, associated with prominent conjunctival injection and tearing, which are consistent with the diagnosis of SUNCT (short-lasting unilateral neuralgiform headache attacks with conjunctival injection and tearing).
  
  
  CONCLUSIONS
  These cases corroborate the existence of hereditary forms of this disorder, thus supporting its primary nature.
authors.affiliation: Lisbon Faculty of Medicine and IMM, University of Lisbon, Portugal Headache Outpatient Clinic, Department of Neurology, Department of Neurosciences and Mental Health, Hospital de Santa Maria, Centro Hospitalar Lisboa Norte, Portugal ipavaomartins@gmail.com.
authors.forename: Isabel Pavão
authors.initials: IP
authors.lastname: Martins
authors.affiliation: Headache Outpatient Clinic, Department of Neurology, Department of Neurosciences and Mental Health, Hospital de Santa Maria, Centro Hospitalar Lisboa Norte, Portugal.
authors.forename: Pedro
authors.initials: P
authors.lastname: Viana
authors.affiliation: Department of Neurology, Hospital Fernando da Fonseca, Portugal.
authors.forename: Patricia Pita
authors.initials: PP
authors.lastname: Lobo
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009035:Mothers; D009679:Nuclear Family; D010375:Pedigree; D050798:SUNCT Syndrome / Q000175:diagnosis* / Q000235:genetics*
keywords: SUNCT; extratrigeminal headache; familial headache; trigeminal autonomic cephalalgia