18th January 2024

A 69-year-old female presents with a right-sided throbbing headache for the last 24 hours.

A 69-year-old female presents with a right-sided throbbing headache for the last 24 hours. She feels the pain is spreading down her temple and into her jaw, particularly when she is eating. She is feeling very nauseous and tired and reports some floaters in the right side of her vision.

She undergoes a temporal artery biopsy, which shows the following:

There is no evidence of vasculopathy or occlusion. The intima looks normal, with no thickening and a normal diameter. 

What is the most likely diagnosis?

Select the SINGLE most appropriate option from the list below. Select ONE option only.