Review Question - QID 108561

A 52-year-old woman with hypertension presents to your clinic complaining of swelling in the front of her neck that has been increasing in size for the last six months. She also endorses a recent decrease in weight of 10 lbs in the last month, which she attributes to her new diet, as well as hot flashes that have been interfering with her sleep. She says that she sometimes feels anxious about losing her new job, but denies headaches, palpitations, tremors, or abdominal symptoms. Her temperature is 98°F (36.7°C), pulse is 88/min, blood pressure is 142/82 mmHg, respirations are 12/min, and oxygen saturation is 100% on room air. On physical exam, there is a palpable, non-tender nodule at the anterior aspect of her neck, which moves upon swallowing. No cervical adenopathy is appreciated. Routine labs and thyroid function tests were performed with the following results:

Serum:
Na+: 142 mEq/L
K+: 4.1 mEq/L
Cl-: 88 mEq/L
HCO3-: 24 mEq/L
Blood urea nitrogen: 11 mg/dL
Creatinine: 1.2 mg/dL
Thyroid stimulating hormone: 3.0 mIU/L
Free T4: 1.0 ng/dL

Hemoglobin: 13.5 g/dL
Leukocyte count: 6,000/mm^3
Platelet count: 250,000/mm^3

An ultrasound guided fine-needle aspiration (FNA) of the mass is shown in Figure A. Which of the follow is most likely to be part of this patient's history?