[Sub-callus epidermoid cyst. A case report].
The cranio-encephalic epidermoid cysts are rare tumors. These lesions are extra-axial and can occur at the infratentorial or supratentorial level. The epidermoid cysts are classically in contact with the base of the skull, and less often intraventricular; the other locations are exceptional. Because of their CT aspect (hypodense lesion, rarely isodense, well defined, without contrast enhancement, and without surrounding edema) and MR aspect (in more than 70% of the cases: more or less homogeneous lesion, hypointense in T1 and hyperintense in T2), the authors believe that it is possible to suggest such a diagnosis even with an atypically located case. We report the case of an epidermoid cyst located between the corpus callosum and the falx cerebri.
Service de Neuroradiologie, Institut et hôpital neurologiques de Montréal, Québec, Canada.
A
A
Weill
D
D
Tampieri
D
D
Melançon
R
R
Ethier
D000368:Aged; D001927:Brain Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging; D004814:Epidermal Cyst / Q000175:diagnosis* / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D014057:Tomography, X-Ray Computed
Kyste épidermoïde sus-calleux. A propos d'un cas.