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Imaging modalities a) bounded, solid hypoechogenic, slightly vascularised formation 19 × 17 × 9 mm, b) CT scan of lateral projection of heterotopic thyroid tissue in the root of the tongue, without the presence of the thyroid in the usual neck position, c) scintigraphy and, d) SPECT (single photon emission computed tomography) radiopharmaceuticals (99mTc-pertechnetate) in the root of the tongue and confirmed the absence of thyroid tissue in its usual location in the anterior neck.
