A 55-year-old man was admitted to the emergency department because of decreased strength in his right limbs for 2 days. The only relevant information regarding his personal history was his daily alcohol intake of 80 g. On neurologic examination, he had nystagmus in all directions of gaze, right hemiparesis (grade 4), and hemihypoasthesia. A brain CT scan showed a space-occupying lesion in the left frontal lobe with vasogenic edema, conditioning a right midline shift. A brain MRI favored the hypothesis of secondary brain tumor (A)
