Follicular 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 follicular thyroid cancer include elevated T3, elevated T4, and decreased thyroid stimulating hormone.

Laboratory findings consistent with the diagnosis of follicular thyroid cancer include:

• 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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