Thyroid Nodules Topic Guide

Thyroid Nodules Thyroid Nodules: Thyroid nodules are lumps that are either solid or fluid-filled. Thyroid nodules may be benign or malignant (cancerous). Thyroid nodules may be caused by goiters, Hashimoto's thyroiditis, thyroid cysts, benign thyroid tumors, malignant thyroid tumors, or thyroid cancer. Treatment depends upon the type and cause of the thyroid nodule.

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