RT Journal Article SR Electronic T1 Use of Diffusion-Weighted MR Imaging in Differential Diagnosis Between Intracerebral Necrotic Tumors and Cerebral Abscesses JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1252 OP 1257 VO 20 IS 7 A1 Brigitte Desprechins A1 Tadeusz Stadnik A1 Guus Koerts A1 Wael Shabana A1 Catherine Breucq A1 Michel Osteaux YR 1999 UL http://www.ajnr.org/content/20/7/1252.abstract AB Summary: The differential diagnosis between intracerebral necrotic tumors and cerebral abscesses is frequently impossible with conventional MR imaging. We report two cases of cerebral abscesses that showed high signal on diffusion-weighted echo planar imaging and a strongly reduced apparent diffusion coefficient. This appearance was not present in our cases of necrotic/cystic gliomas (eight cases) and necrotic metastases (two cases). We believe that diffusion-weighted MR imaging may be a diagnostic clue in cases of cerebral “ring-enhancing” masses.