Anaplastic thyroid cancer laboratory findings

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Ammu Susheela, M.D. [2]

Laboratory findings consistent with the diagnosis of anaplastic thyroid cancer include elevated T3, elevated T4, and decreased thyroid stimulating hormone.

The following tests may be done:

• Thyroid function test^[1]

• Elevated T3
• Elevated T4
• Lowered thyroid stimulating hormone

• Tumor marker tests- Tumor markers are substances, usually proteins in the blood that may indicate the presence of thyroid cancer. Tumor marker tests are used to check a person’s response to cancer treatment, but they can also be used to diagnose thyroid cancer.

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