Seizure Disorders USMLE Step 1 Practice Question
A 68-year-old man presents with his first focal motor seizure involving the left leg followed by 48-hour post-ictal paralysis. Vitals: BP 142/88, HR 92, RR 18, Temp 37.2°C, SpO2 98% on room air. Brain MRI demonstrates a right parietal mass with vasogenic edema and mass effect; no acute intracranial hemorrhage noted. Laboratory studies show normal complete blood count and basic metabolic panel. He denies recent head trauma and takes no antiepileptic medications. Which diagnosis best explains these findings?
Answer choices
- ABenign focal epilepsy of childhood
- BPrimary brain tumor or intracranial massCorrect answer
- CCerebral infarction
- DIdiopathic focal epilepsy
- EViral encephalitis
- FHypertensive encephalopathy
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