RT Journal Article SR Electronic T1 Multiple sclerosis simulating brain tumor JF Neurosciences Journal JO Neurosciences (Riyadh) FD Prince Sultan Military Medical City SP 134 OP 137 VO 7 IS 2 A1 Amer A. Shurbaji A1 Munir A. Dehayyat A1 Imad A. Abu-Ruman A1 Ammar F. Mubaidin YR 2002 UL http://nsj.org.sa/content/7/2/134.abstract AB We report a case of a 29-year-old female patient with atypical magnetic resonance image appearance of multiple sclerosis simulating brain tumor on magnetic resonance images, that proved to be a demyelinating disease on brain biopsy. Steroid pulse therapy produced regression of the lesions on magnetic resonance images.