The patient was started on IV ampicillin-sulbactam, as her clinical picture was concerning for AST. Additionally, she was started on naproxen 500 mg twice daily and propranolol 20 mg three times daily for inflammation and thyrotoxicosis, respectively. Over the first four days of hospitalization, the patient remained afebrile, and the leukocytosis and neck swelling improved. A thyroid ultrasound was performed on day 4 to further evaluate for a drainable abscess given the concern for AST. The ultrasound showed a heterogeneous, necrotic, and hypervascular mass in the right lobe measuring 6.8 × 4.8 × 4.5 cm, without any drainable abscess (Figure 2). The patient subsequently underwent ultrasound-guided FNA; cultures grew MSSA, and cytology was consistent with follicular lesion of undetermined significance. A transesophageal echocardiogram ruled out endocarditis. On day 8 of hospitalization, the patient was transitioned from IV ampicillin-sulbactam to oral amoxicillin-clavulanate and discharged home to complete a total of 14 days of antibiotics. She was also discharged on the same regimen of propranolol and naproxen. The patient was instructed to follow up at the endocrinology clinic in one month and receive a repeat FNA in three to six months.