title: Rathke Cleft Cyst with Evidence of Rupture into Subarachnoid Space.
abstract: BACKGROUND
  A Rathke cleft cyst (RCC) with nonhemorrhagic rupture mimicking pituitary apoplexy has been reported rarely.
  
  
  METHODS
  A 52-year-old woman, previously diagnosed with asymptomatic RCC, came to us with a severe headache, along with visual dysfunction and symptoms of pituitary insufficiency. Fluid-attenuated inversion recovery magnetic resonance imaging demonstrated diffuse hyperintensity in the cerebral cisterns, whereas watery clear cerebrospinal fluid was obtained by lumbar puncture. Surgery performed 1 month after onset revealed a nonhemorrhagic lesion, with a final diagnosis of nonhemorrhagic RCC rupture.
  
  
  CONCLUSIONS
  We conclude that nonhemorrhagic RCC rupture and subsequent leakage of the contents into subarachnoid space were the underlying pathogenesis in the present case of RCC resembling apoplexy.
authors: Department of Neurosurgery, Nabari City Hospital, Nabari, Mie, Japan; Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan. Electronic address: hyokota0001@gmail.com.
authors: Hiroshi
authors: H
authors: Yokota
authors: Department of Neurosurgery, Nabari City Hospital, Nabari, Mie, Japan.
authors: Yuki
authors: Y
authors: Ida
authors: Department of Neurosurgery, Nabari City Hospital, Nabari, Mie, Japan.
authors: Daisuke
authors: D
authors: Wajima
authors: Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan.
authors: Fumihiko
authors: F
authors: Nishimura
authors: Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan.
authors: Hiroyuki
authors: H
authors: Nakase
mesh_terms: D001932:Brain Neoplasms / Q000150:complications / Q000000981:diagnostic imaging* / Q000601:surgery*; D020863:Central Nervous System Cysts / Q000150:complications / Q000000981:diagnostic imaging* / Q000601:surgery*; D065634:Cerebrospinal Fluid Leak / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008875:Middle Aged; D012422:Rupture, Spontaneous / Q000150:complications / Q000000981:diagnostic imaging; D013346:Subarachnoid Space / Q000000981:diagnostic imaging*; D016896:Treatment Outcome
keywords: Apoplexy; Fluid-attenuated inversion recovery; Magnetic resonance imaging; Rathke cleft cyst