Thyroid gland shows nodular adenomatous hyperplasia. Nodules are variable in size and composed of small and large crowded follicles full of thick colloid and lined by mature epithelium. Sections from some of the nodules show compact microfollicles devoid of colloid and lined by cuboidal cells separated by delicate vascular stroma. In these follicles nuclei are vesicular and look active but no appreciable mitosis. Stroma shows mild fibrosis. No evidence of hyperfunction or malignancy.
Multinodular goiter.
Total thyroidectomy specimen composed of two lobes and an isthmus with an intact capsule. The first lobe measured 4.5x2.5x1.3 cm and contained one grayish nodule measured 1x 1 cm. The second lobe measured 6x3.5x2.8 cm, and showed two grayish nodules, largest measured 4x3.2x2.8 cm. The isthmus measured 1.5x1 cm.
Total thyroidectomy