Dear Dr. Roach: I'm set to have a CT scan of my lungs with iodine dye. I have hypothyroidism and am on 25 mg of levothyroxine. Should I take the medicine the day of the test? Or should I have the CT ...

The thyroid gland produces two thyroid hormones, triiodothyronine (T3) and thyroxine (T4), and releases them as needed by the body. The hypothalamus and the pituitary gland help control the thyroid ...

Thyroxine (T4) is the main hormone your thyroid makes. Your thyroid hormones are important because they control how your body uses energy from the food you eat. (Photo Credit: iStock/Getty Images) T4 ...

An ultrasound is a painless procedure that uses sound waves to generate images of the inside of your body. Your doctor will often use an ultrasound to create images of a fetus during pregnancy. A ...

‌Your thyroid is a small butterfly-shaped organ in the front of your neck. It has a lot of important roles, including making hormones that control your metabolism and help your body grow and develop.

Thyroid nodules are lumps that can develop on the thyroid gland. They may be solid. Most are benign, but there is a low risk of thyroid cancer. The thyroid is a small gland in the front part of the ...

Original Medicare (parts A and B) and Medicare Advantage (Part C) cover the full cost of a TSH (thyroid-stimulating hormone) test after meeting your deductible. Medicare Part B generally covers two ...

FNA is recommended for all palpable solitary or dominant nodules, independent of size. FNA is preferred over thyroid scan or ultrasonography as the initial diagnostic test for thyroid nodules. However ...

Of the four main types of thyroid cancer, the vast majority are differentiated thyroid cancer (DTC). Radioiodine (I-131) therapy has been used in the management of patients with DTC since the first ...

Thyroid disorders affect nearly a quarter of individuals ≥ 65 years, and their prevalence in this group is expected to rise as the population progressively ages and people live longer. These ...