15th September 2020

A 67-year old man presents with a five-day history of severe headache

A 67-year old man presents with a five-day history of severe headache. The headache began suddenly, and is mainly affecting his temples, although he also describes the pain spreading to his jaw, which is exacerbated by chewing. The headache has appeared to settle multiple times, but it invariably returns.

For the case above, please select the SINGLE most likely diagnosis. Select ONE option from the list above.