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.
Right thyroid nodules.
Rt. hemithyroidectomy specimen: thyroid lobe measured 7x4x3 cm, with intact capsule. Serial sectioning revealed multiple grey nodules, the largest measured 2.5x2 cm, totally embedded.
Rt. hemithyroidectomy