RT Journal Article SR Electronic T1 Primary angiitis of the central nervous system: unusual MR appearance. JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 331 OP 334 VO 15 IS 2 A1 E I Shoemaker A1 Z S Lin A1 A D Rae-Grant A1 B Little YR 1994 UL http://www.ajnr.org/content/15/2/331.abstract AB The MR findings of a biopsy-proved case of primary angiitis of the central nervous system are described and compared with previously reported cases. Multiple punctate and linear areas of gadopentetate dimeglumine enhancement were present in the brain stem and white matter and appear to correspond to the inflammatory reaction of the small perforating vessels and perivascular tissues seen in the pathologic specimen.