18-Thyroid Nodules

7. SINGLE THYROID NODULE. The common causes of thyroid nodules are: Colloid goitre and cysts. Adenomatous hyperplasia. Follicular adenoma. Thyroid carcinoma . The incidence of malignancy in solitary nodule may be as high as 10%. The sudden appearance of a painful thyroid nodule is usually due to bleeding into a colloid cyst; this resolves ... ................
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