A 75-year-old female patient presented with cough, rhinorrhea, sore throat, and appetite loss and was evaluated for anterior cervical pain and thyrotoxicosis. The patient was 145 cm tall and had a body weight of 40 kg.
Clinical examination Blood pressure was 137/81 mmHg Regular pulse rate of 116 beats/min Body temperature was 37.0°C An electrocardiogram showed sinus tachycardia No family history of autoimmune thyroid diseases She did not take any medicines Neck pain initially appeared on the left side and subsequently moved to the right side Laboratory data Normal white cell count (8,290 cells /µL) Slightly elevated C-reactive protein (3.94 mg/dL) Alkaline phosphatase (460 U/L) levels Thyroid hormone levels were elevated (free triiodothyronine, 20.27 pg/mL; free thyroxine, 6.53 ng/dL; thyroglobulin, 183 ng/mL) Thyroid-stimulating hormone (TSH) was undetectable Ultrasonography (USG) of…
