A benign well encapsulated tumor formed of small and large follicles full of colloid and lined by unremarkable cuboidal cells. Adjacent thyroid tissue is compressed. No evidence of hyperfunction or malignancy.
Goiter.
Thyroid lobe 7x4.5x4 cm, cut section showing replacement of total lobe by a soft brownish nodule. Capsule is intact.
Rt. Hemithyroidectomy: