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Thyroid and Neck Masses Goitre Goitres are common in some parts of the tropics and may become enormous. They may have a uniform echo pattern or solid and anechoic cystic areas (colloid goitre). There may be areas of necrosis, but it is not possible to differentiate benign from malignant goitre; neither the size nor calcification nor ultrasound characteristics have any prognostic significance (Figs. 48.76, 48.77; see also chapters on Malignant and Non-Malignant Neoplastic Diseases).
Fig. 48.76 A,B. Huge carcinoma (arrows) of the right lobe of thyroid (R), indistinguishable from goitre. T trachea; L left lobe; C common carotid artery.
Fig. 48.77 A,B. Large hemorrhagic cyst in the left lobe of the thyroid, which may be diagnosed clinically as goitre. R right lobe; M cyst; I internal jugular vein; C common carotid artery; T trachea.
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Copyright: Palmer and Reeder
