Among the inflammatory diseases of the thyroid, Hashimoto’s thyroiditis is the most common [4,6,10,22]. Patients frequently have no symptoms when it is found on ultrasound examination. Usually the whole gland is affected, or the changes are found in parts of the gland where there are no nodules. The thyroid gland may be enlarged, but often the size is normal. The tissue is usually strongly hypoechoic with a micronodular pattern. The micronodules range in size from about 1 to 6 mm. The vascularity in Hashimoto’s thyroiditis varies from scant to rich, but occasionally is extremely rich, the so-called “thyroid inferno,” which is often seen in Grave’s disease (see page 142) . Sometimes a cytologic biopsy is somewhat painful.
KeywordsThyroid Gland Clinical History Papillary Thyroid Carcinoma Lymphoid Cell Follicular Tumor
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