A 60-year-old man with forehead swelling A 60-year-old man presented to our emergency department with a 4-day history of frontal headaches he described as "stinging." He had also had a large swollen area on his forehead for the past 8 weeks. He denied fevers, chills, nausea, vomiting, blurry vision, tinnitus, and neck pain, as well as any recent sinus infection, intransanal cocaine use, rhinorrhea, or head trauma. A month ago, he had presented to our emergency department with forehead swelling but no headaches. At that time, the swelling was thought to be