Representative magnetic resonance (MR) images of a brain parenchymal metastatic tumor (a–c) and meningeal metastases (d–f).

<p>(a) Non-contrast coronal T1-weighted (T1W) image. (b) Contrast enhanced coronal T1W image. (c) Contrast enhanced sagittal T1W image. (d) Non-contrast axial T1W image. (e) Non-contrast axial T2-weighted image. (f) Contrast enhanced coronal T1W image. The white arrow in (b, c) and (e, f) indicate the tumor sites.