title: Unusual CT image of a cerebral hydatid cyst.
abstract: We report an unusual case of cerebral hydatid cyst which was found with CT. Unenhanced CT showed a hyperdense, not calcified, ring surrounding the cyst cavity. This has never been reported before. We propose a possible explanation for such abnormal behaviour.
authors.affiliation: Service of Neurosurgery, Hospital Infantil La Paz, Madrid, Spain.
authors.forename: C A
authors.initials: CA
authors.lastname: González-Ruiz
authors.forename: A
authors.initials: A
authors.lastname: Isla
authors.forename: A
authors.initials: A
authors.lastname: Pérez-Higueras
authors.forename: M G
authors.initials: MG
authors.lastname: Blázquez
mesh_terms: D001921:Brain / Q000000981:diagnostic imaging*; D001927:Brain Diseases / Q000000981:diagnostic imaging*; D002648:Child; D004443:Echinococcosis / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D014057:Tomography, X-Ray Computed