Thyroid Cancer

Reviewed by Kamran Mahmood, MD, MPH, Associate Professor of Medicine, Duke University Medical Center, Board Certified in Pulmonology & Critical Care.

Thyroid cancer develops in the thyroid gland, a small butterfly-shaped organ at the base of your neck that plays a vital role in regulating metabolism, heart rate, and body temperature. This type of cancer is more common in women and often diagnosed early due to its slow progression and distinct symptoms, such as a lump in the neck or changes in voice. Thyroid cancer is classified into several types—papillary, follicular, medullary, and anaplastic—with papillary being the most prevalent and least aggressive. Early detection and treatment greatly improve outcomes, making it essential to be vigilant about any unusual changes in your neck or throat.

Types of Thyroid Cancer

Papillary: The most common and least aggressive type.
Follicular: Slightly more aggressive and may spread to distant tissues.
Medullary: Linked to genetic syndromes, rare but more aggressive.

Signs and Symptoms

A lump or swelling in the neck.
Hoarseness or changes in voice.
Difficulty swallowing or breathing.
Persistent cough not caused by illness.

Diagnosis

Physical Examination: Checks for lumps or irregularities in the neck.
Ultrasound: Identifies the size and structure of thyroid nodules.
Fine-Needle Aspiration Biopsy: Confirms the presence of cancer cells.
Blood Tests: Check thyroid hormone levels and tumor markers.

Early and accurate diagnosis is crucial for effective thyroid cancer treatment. If you’re experiencing symptoms or need expert guidance, an online medical consultation or a second medical opinion can help you make informed decisions about your thyroid health.

Treatment

Surgery: Thyroidectomy (partial or total removal of the thyroid gland).
Radioactive Iodine Therapy: Destroys remaining cancer cells after surgery.
Thyroid Hormone Therapy: Prevents cancer recurrence and maintains metabolism.
Targeted Therapy: For advanced or recurrent cases.

Screening

Routine neck examinations and monitoring of thyroid function in individuals with a family history can aid in early detection.

Prevention

While most cases cannot be prevented, minimizing radiation exposure and maintaining a balanced diet with sufficient iodine can lower risks.