title: P027. Idiopathic intracranial hypertension without papilledema in refractory chronic daily headache.
authors.affiliation: Department of Biomedical and NeuroMotor Sciences (DIBINEM) Alma Mater Studiorum-University of Bologna, IRCCS Institute of Neurological Sciences of Bologna, Bologna, Italy. valentina.favoni2@unibo.it.
authors.forename: Valentina
authors.initials: V
authors.lastname: Favoni
authors.affiliation: Neuroradiology Department, IRCCS Institute of Neurological Sciences of Bologna, Bologna, Italy.
authors.forename: Francesco
authors.initials: F
authors.lastname: Toni
authors.affiliation: Department of Biomedical and NeuroMotor Sciences (DIBINEM) Alma Mater Studiorum-University of Bologna, IRCCS Institute of Neurological Sciences of Bologna, Bologna, Italy.
authors.forename: Sabina
authors.initials: S
authors.lastname: Cevoli
authors.affiliation: Neuroradiology Department, IRCCS Institute of Neurological Sciences of Bologna, Bologna, Italy.
authors.forename: Luigi
authors.initials: L
authors.lastname: Cirillo
authors.affiliation: Department of Biomedical and NeuroMotor Sciences (DIBINEM) Alma Mater Studiorum-University of Bologna, IRCCS Institute of Neurological Sciences of Bologna, Bologna, Italy.
authors.forename: Chiara
authors.initials: C
authors.lastname: La Morgia
authors.affiliation: Department of Biomedical and NeuroMotor Sciences (DIBINEM) Alma Mater Studiorum-University of Bologna, IRCCS Institute of Neurological Sciences of Bologna, Bologna, Italy.
authors.forename: Giulia
authors.initials: G
authors.lastname: Giannini
authors.affiliation: Department of Biomedical and NeuroMotor Sciences (DIBINEM) Alma Mater Studiorum-University of Bologna, IRCCS Institute of Neurological Sciences of Bologna, Bologna, Italy.
authors.forename: Rossana
authors.initials: R
authors.lastname: Terlizzi
authors.affiliation: Department of Biomedical and NeuroMotor Sciences (DIBINEM) Alma Mater Studiorum-University of Bologna, IRCCS Institute of Neurological Sciences of Bologna, Bologna, Italy.
authors.forename: Hana Privitera
authors.initials: HP
authors.lastname: Hrustemovic
authors.affiliation: Neuroradiology Department, IRCCS Institute of Neurological Sciences of Bologna, Bologna, Italy.
authors.forename: Monica
authors.initials: M
authors.lastname: Messia
authors.affiliation: Department of Biomedical and NeuroMotor Sciences (DIBINEM) Alma Mater Studiorum-University of Bologna, IRCCS Institute of Neurological Sciences of Bologna, Bologna, Italy.
authors.forename: Pietro
authors.initials: P
authors.lastname: Cortelli
authors.affiliation: Department of Biomedical and NeuroMotor Sciences (DIBINEM) Alma Mater Studiorum-University of Bologna, IRCCS Institute of Neurological Sciences of Bologna, Bologna, Italy.
authors.forename: Giulia
authors.initials: G
authors.lastname: Pierangeli