Review Question - QID 213647

A 75-year-old woman presents to the physician with complaint of a new headache on her right side that she describes as “throbbing” and continuous. She notes that she experiences focal tenderness when she directly pushes on the right side of her head and also with combing her hair. When questioned about other symptoms, she notes that she has felt fatigue and discomfort in her jaw muscles when chewing her food. In addition, she has been concerned about 1 episode of painless vision loss in her right eye that lasted for about 1 minute before her normal vision was restored. An arterial biopsy is performed and confirms the diagnosis. Which of the following findings was most likely seen on pathology?