title: Basilar invagination in headache associated with physical exertion and recurrent torticollis.
authors.affiliation: Universidade Federal de São Paulo, Sao Paulo, SP, Brazil.
authors.forename: Paulo Victor Sgobbi de
authors.initials: PV
authors.lastname: Souza
authors.affiliation: Departamento de Neurologia e Neurocirurgia, Universidade Federal de São Paulo, Sao Paulo, SP, Brazil.
authors.forename: Wladimir Bocca Vieira de Rezende
authors.initials: WB
authors.lastname: Pinto
authors.affiliation: Departamento de Neurologia e Neurocirurgia, Universidade Federal de São Paulo, Sao Paulo, SP, Brazil.
authors.forename: Acary Souza Bulle
authors.initials: AS
authors.lastname: Oliveira
mesh_terms: D006261:Headache / Q000209:etiology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009809:Odontoid Process / Q000002:abnormalities*; D005082:Physical Exertion; D010985:Platybasia / Q000175:diagnosis*; D014057:Tomography, X-Ray Computed; D014103:Torticollis / Q000209:etiology*