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Thyroid stimulating hormone level was 40.66 µU/mL. A. Solid nodular mass (arrows), similar to normal thyroid echogenicity, was present in anterior strap muscle at level of larynx (arrowheads, cricoarytenoid joint) on transverse scan. B. Image of Tc-99m scan shows isotope uptake in upper neck with no uptake in normal thyroid gland.
