A 67-year-old woman with a history of type 2 diabetes was referred to our hospital and reported painful swelling on the left neck over a 2-week period. She had visited another hospital where she was administered oral antibiotics, but her symptoms deteriorated. Her temperature, pulse, and blood pressure were 35.3 C, 107 bpm, and 92/50 mm Hg, respectively. During physical examination, bruising, tenderness, and severe swelling of the left neck were noted (Figure 1A). Laboratory data revealed the following: a white blood count of 11 340/mL, a hemoglobin level of 10.3 g/dL, a creatinine level of 1.9 mg/dL,