title: Spontaneous resolution of cerebrospinal fluid otorrhoea in a patient with a Hyrtl's fissure.
abstract: OBJECTIVE
  This paper reports a rare case of cerebrospinal fluid leak due to a Hyrtl's fissure and discusses the non-operative management of the case. Background and case report: Cerebrospinal fluid otorrhoea is a rare phenomenon arising from an abnormal communicating tract between the subarachnoid space and middle ear. Affected patients are at a higher risk of developing meningitis and other neuro-otological complications. There are four common congenital causes of cerebrospinal fluid otorrhoea in the region of a normal labyrinth. This paper describes a case of cerebrospinal fluid in the middle ear resulting from a Hyrtl's fissure, which resolved spontaneously.
  
  
  CONCLUSIONS
  A literature search indicated this to be the first case with such a resolution without the need for any intervention.
authors.affiliation: Department of ENT,Ipswich Hospital Trust,UK.
authors.forename: R
authors.initials: R
authors.lastname: Brar
authors.affiliation: Department of ENT,Ipswich Hospital Trust,UK.
authors.forename: A
authors.initials: A
authors.lastname: Vijendren
authors.affiliation: Department of ENT,Ipswich Hospital Trust,UK.
authors.forename: M
authors.initials: M
authors.lastname: Salam
authors.affiliation: Department of Radiology,Ipswich Hospital Trust,UK.
authors.forename: G
authors.initials: G
authors.lastname: Picken
mesh_terms: D000158:Acoustic Impedance Tests; D001301:Audiometry, Pure-Tone; D002558:Cerebrospinal Fluid Otorrhea / Q000151:congenital / Q000175:diagnosis* / Q000628:therapy*; D002648:Child; D004432:Ear, Middle / Q000002:abnormalities* / Q000473:pathology*; D006801:Humans; D008297:Male; D012075:Remission, Spontaneous; D013346:Subarachnoid Space / Q000002:abnormalities* / Q000473:pathology*; D014057:Tomography, X-Ray Computed
keywords: Cerebrospinal Fluid Otorrhea; Congenital Fissure; Ear Diseases