1. Orbital lymphoma (A–C) compared with OIS (D–F).
Orbital lymphoma (A–C) compared with OIS (D–F). A, Axial T1-weighted image shows a rounded isointense mass at the upper aspect of the orbit (arrow). B, Axial T2-weighted image shows isointense signal intensity–to-brain parenchyma (arrow). C, Axial DWI shows high signal intensity relative to brain parenchyma (arrow). D, Axial T1-weighted image shows an isointense ovoid intraconal mass (arrow). E, Axial T2-weighted image shows slight hypointensity compared with parenchyma (arrow). F, Axial DWI shows even greater hypointensity compared with brain parenchyma (arrow). Comparison of quantitative ADC also showed a difference between these lesions.
R. Kapur et al. AJNR Am J Neuroradiol 2009;30:64-70
©2009 by American Society of Neuroradiology