title: [Rathke's cleft cyst].
abstract: Rathke's cleft cyst (RCC) are frequent benign cystic sellar lesions. Most RCC are small, intrasellar and asymptomatic. Larger cysts may compress adjacent structures and rarely become symptomatic. Diagnosis is strongly suggested at MRI by the presence of a midline non-enhancing lesion located exactly between the anterior and posterior lobes of the pituitary gland. Even if its signal is variable and related to intracystic protein concentration, it must be homogeneous with no fluid-fluid level. Once a diagnosis of RCC made, routine MR and clinical follow-up is sufficient for incidental asymptomatic cysts whereas the rare symptomatic lesions are neurosurgically resected.
authors.affiliation: Fédération de Neuroradiologie, Bâtiment Babinski, Groupe Hospitalier Pitié-Salpêtrière, 47, boulevard de l'Hôpital, 75013 Paris, France. fabrice.bonneville@psl.ap-hop-paris.fr
authors.forename: F
authors.initials: F
authors.lastname: Bonneville
authors.forename: F
authors.initials: F
authors.lastname: Cattin
authors.forename: J-F
authors.initials: JF
authors.lastname: Bonneville
authors.forename: G
authors.initials: G
authors.lastname: Jacquet
authors.forename: G
authors.initials: G
authors.lastname: Viennet
authors.forename: D
authors.initials: D
authors.lastname: Dormont
authors.forename: J
authors.initials: J
authors.lastname: Chiras
mesh_terms: D020863:Central Nervous System Cysts / Q000175:diagnosis* / Q000196:embryology / Q000453:epidemiology / Q000601:surgery; D006801:Humans; D008279:Magnetic Resonance Imaging