A 46-year-old man presents to his internist reporting episodic left-sided numbness. He reports that over the past 2 months he has experienced three discrete episodes of numbness in the left face and arm. The episodes are all similar in nature and last approximately 25 minutes. The episodes start with a sense of tingling in his left hand. The tingling slowly progresses over 15 minutes to involve his left forearm, arm, shoulder, neck and face. The tingling then subsides over the next 10 minutes. He denies associated weakness or visual loss. He has a history of gout. His neurologic examination at the time of presentation is normal. What is the most likely diagnosis?

A. cervical radiculopathy
B. migraine aura
C. periodic paralysis
D. simple partial seizure
E. transient ischemic attack