title: Tic, Triggering, and Tearing: From CTN to SUNHA.
abstract: OBJECTIVE
  Classical trigeminal neuralgia (CTN) and the short-lasting unilateral neuralgiform headache attacks (SUNHA) are clinically similar.
  
  
  OBJECTIVE
  The SUNHAs include short-lasting unilateral neuralgiform headache attacks with conjunctival injection and tearing (SUNCT) and short-lasting unilateral neuralgiform headache attacks with cranial autonomic symptoms (SUNA). Shared clinical signs with CTN include severe, unilateral trigeminal pain that is often triggered by innocuous stimuli and accompanied by a dull persistent background pain. Recent reports on trigeminal neuralgia cases with atypical features such as autonomic signs and prolonged attack duration further blur the clinical distinction between CTN and SUNHAs.
  Are the similarities greater than their differences? If so, this may reflect a spectrum of disease ranging from typical CTN attacks to typical SUNHAs with a mixed phenotype in the middle. In this review they will summarize the overlap between these entities and contrast the pathophysiology and treatment approach.
authors.affiliation: Rutgers School of Dental Medicine, Rutgers State University of New Jersey, Newark, NJ, USA.
authors.forename: R
authors.initials: R
authors.lastname: Benoliel
authors.affiliation: Department of Oral Medicine, The Faculty of Dentistry, Hebrew University-Hadassah, Jerusalem, Israel.
authors.forename: Y
authors.initials: Y
authors.lastname: Sharav
authors.affiliation: Department of Oral Medicine, The Faculty of Dentistry, Hebrew University-Hadassah, Jerusalem, Israel.
authors.forename: Y
authors.initials: Y
authors.lastname: Haviv
authors.affiliation: Department of Oral Medicine, The Faculty of Dentistry, Hebrew University-Hadassah, Jerusalem, Israel.|Department of Oral Medicine, Oral and Maxillofacial Center, Medical Corps, Israel Defense Forces, Tel-Hashomer, Israel.
authors.forename: G
authors.initials: G
authors.lastname: Almoznino
mesh_terms: D001342:Autonomic Nervous System Diseases / Q000175:diagnosis / Q000503:physiopathology / Q000628:therapy; D006801:Humans; D050798:SUNCT Syndrome / Q000175:diagnosis / Q000503:physiopathology* / Q000628:therapy*; D014277:Trigeminal Neuralgia / Q000175:diagnosis / Q000503:physiopathology* / Q000628:therapy*
keywords: CTN; SUNHA; trigeminal neuralgia