title: Spontaneous Cerebrospinal Fluid Otorrhea from a Persistent Tympanomeningeal Fissure Presenting as Recurrent Serous Otitis Media.
abstract: We describe spontaneous cerebrospinal fluid (CSF) otorrhea through a patent tympanomeningeal (Hyrtl) fissure presenting as recurrent serous otitis media. The CSF leak was observed when a drain was placed through the tympanic membrane by an otologist. The diagnosis was then confirmed by computed tomography and magnetic resonance imaging, and the patient underwent a successful surgical treatment via a retrosigmoid approach. We describe the case and review causes of spontaneous CSF rhinorrhea/otorrhea.
authors.affiliation: Department of Neurosurgery, Yerevan State Medical University, Armenia.
authors.forename: Arman
authors.initials: A
authors.lastname: Zakaryan
authors.affiliation: Department of Neurosurgery, Copenhagen University Hospital, Rigshospital, Copenhagen, Denmark.
authors.forename: Lars
authors.initials: L
authors.lastname: Poulsgaard
authors.affiliation: Department of Otorhinolaryngology - Head and Neck Surgery, Copenhagen University Hospital, Rigshospital, Copenhagen, Denmark.
authors.forename: Camilla
authors.initials: C
authors.lastname: Hollander
authors.affiliation: Department of Neurosurgery, Copenhagen University Hospital, Rigshospital, Copenhagen, Denmark.
authors.forename: Kåre
authors.initials: K
authors.lastname: Fugleholm
keywords: cerebrospinal fluid leak; patent tympanomeningeal (Hyrtl) fissure; recurrent serous otitis media; retrosigmoid approach; spontaneous cerebrospinal fluid otorrhea