title: Computed tomography in extra-dural epidermoid and xanthoma.
abstract: Two cases of extradural epidermoid cyst and one case of xanthoma are reported in order to describe the computed tomographic and other radiographic findings. Contrast enhancement of the margin was seen in all of the cases. Absorption values almost as low as those found with cerebrospinal fluid were present in the central region of the lesions.
mesh_terms: D000328:Adult; D001927:Brain Diseases / Q000000981:diagnostic imaging*; D001932:Brain Neoplasms / Q000000981:diagnostic imaging*; D004388:Dura Mater; D004814:Epidermal Cyst / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008297:Male; D014057:Tomography, X-Ray Computed; D014973:Xanthomatosis / Q000000981:diagnostic imaging*