title: An unusual form of TAC-TAC sine autonomic phenomena.
abstract: The trigeminal autonomic cephalalgias (TACs) are characterized by the cardinal combination of short-lasting unilateral pain and autonomic phenomena affecting the head, including cluster headache, paroxysmal hemicrania and SUNCT. Infrequently reported have been cases with dissociation of these two cardinal features- usually with autonomic phenomena without pain, rather than the reverse. Herein is described the case of a 56-year-old man presenting with an unusual form of TAC resembling chronic paroxysmal hemicrania but with a lower frequency of occurrence, with temporal features not typical of previously described TACs, and consisting of severe unilateral head pain without any autonomic symptoms or signs, absolutely responsive to indomethacin.
authors.affiliation: Headache Institute of Tidewater, Brighton Research Group, Virginia Beach, VA, USA. npugach@brg.cc
authors.forename: Neil Lewis
authors.initials: NL
authors.lastname: Pugach
mesh_terms: D006801:Humans; D008297:Male; D008875:Middle Aged; D051302:Paroxysmal Hemicrania / Q000175:diagnosis*; D051303:Trigeminal Autonomic Cephalalgias / Q000175:diagnosis* / Q000503:physiopathology*