Q. A 35-year-old pregnant woman presents to your clinic with symptoms of fatigue, weight gain, cold intolerance, and constipation. She reports that she has been feeling tired and sluggish for the past few months, despite getting adequate sleep and exercising regularly. She also reports that she has noticed some weight gain, despite no significant changes in her diet, and has been feeling colder than usual. Additionally, she reports having trouble with constipation, which is not typical for her. On physical examination, the patient is found to have a swollen neck and a slow, slurred speech pattern. Blood tests reveal elevated levels of thyroid-stimulating hormone and low levels of free thyroxine. Further testing, including an ultrasound and CT of her thyroid gland, reveals the presence of multiple small, round nodules in the thyroid (see imaging). You start the patient on levothyroxine and refer her to an endocrinologist for further management. You advise her to continue her pregnancy. You also inform her that with proper treatment, she is expected to have a normal pregnancy and delivery, with no significant impact on her health or the health of her baby. Which of the following additional statements regarding her most likely diagnosis is NOT true?