A 30-year-old woman noticed a painless left neck mass. History She had no history of dysphagia, dyspnea, recent upper respiratory tract infection, injury, or surgery. She also had no weight loss, pain, or fever. No history of tobacco/alcohol use, radiation exposure, family history of thyroid cancer, and no previous thyroid dysfunction. Medical history She had a medical history of high-grade osteosarcoma with areas of leimyosarcoma of the tibia, which had been treated with right above-knee amputation and chemotherapy four years prior to presentation.
She was followed up in the oncology clinic without any recurrence or metastases. Her last visit was six months earlier. She was also diagnosed with squamous cell carcinoma of the cervix two months earlier and was awaiting surgery. Examinations Thyroid function test results were normal. Physical examination revealed a palpable nontender, firm…
