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What do the letters in stage IV papillary follicular thyroid cancer mean?

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If you're at stage IV papillary follicular thyroid cancer, it means the cancer has spread. Your doctor uses the letters A, B, and C to show how far.

  • Stage IVA: The cancer has spread beyond your thyroid. It's under your skin, or it affects your larynx, esophagus, or trachea. A smaller tumor in more distant lymph nodes can also be stage IVA.
  • Stage IVB: The tumor has grown toward your spine or into nearby large blood vessels, like the carotid arteries. These carry blood to your brain, face, and neck. It might have also spread to your lymph nodes.
  • Stage IVC: The cancer has spread beyond the thyroid, and to distant parts of the body. It may be in your lungs, bones, and lymph nodes.

SOURCES

American Association of Clinical Endocrinologists/American College of Endocrinology: “AACE/AAES Medical/Surgical Guidelines for Clinical Practice: Management of Thyroid Carcinoma.”

American Thyroid Association: “Thyroid Cancer.”

American Cancer Society: “Thyroid Cancer.”

 

Reviewed by Suchita Pakkala on October 30, 2016

SOURCES

American Association of Clinical Endocrinologists/American College of Endocrinology: “AACE/AAES Medical/Surgical Guidelines for Clinical Practice: Management of Thyroid Carcinoma.”

American Thyroid Association: “Thyroid Cancer.”

American Cancer Society: “Thyroid Cancer.”

 

Reviewed by Suchita Pakkala on October 30, 2016

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