Cranial nerve enhancement secondary to leptomeningeal metastases

Brain magnetic resonance imaging (MRI) in a 57-year-old female with small cell lung cancer and a history of brain metastases, presenting with new leptomeningeal disease. Pre-contrast axial (A-C) and post-contrast axial (D-F) T1-weighted MR imaging demonstrates abnormal enhancement of cranial nerve V (arrow), VII (arrowhead), and VIII (dashed arrow).