title: Tension-type headache: one or more headaches?
abstract: In this context, the focus will be on the homogeneity of tension-type headache (T-TH): is it a disease? Or: is it more likely to be a syndrome? A multiplicity of disorders from as drastically different fields of medicine as disorders caused by environmental gases, intra-psychic conflicts, and nuchal/cervical disorders can putatively fake T-TH. T-TH is in all probability a conglomerate of disorders and not one solid, homogeneous disorder.
authors.affiliation: Department of Neurology, st. Olavs Hospital, Trondheim University Hospital, Norway. ellhed@online.no
authors.forename: Ottar
authors.initials: O
authors.lastname: Sjaastad
mesh_terms: D001416:Back Pain / Q000150:complications; D004781:Environmental Exposure; D005740:Gases / Q000009:adverse effects; D006801:Humans; D020325:Migraine with Aura / Q000150:complications; D019547:Neck Pain / Q000150:complications; D011618:Psychotic Disorders / Q000150:complications; D018781:Tension-Type Headache / Q000145:classification / Q000175:diagnosis* / Q000209:etiology*
chemical_list: D005740:Gases