RT Journal Article SR Electronic T1 Chemical analysis of an epidermoid cyst with unusual CT and MR characteristics. JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1111 OP 1112 VO 19 IS 6 A1 F A Timmer A1 M Sluzewski A1 M Treskes A1 W J van Rooij A1 J L Teepen A1 D Wijnalda YR 1998 UL http://www.ajnr.org/content/19/6/1111.abstract AB Chemical analysis of the contents of a so-called bright epidermoid of the posterior fossa with unusual CT and MR imaging characteristics suggested that a combination of high protein content and high viscosity were responsible for the atypical imaging findings.