Sections from the nodule showing benign well encapsulated tumor formed of small and large follicles full of colloid and lined by unremarkable cuboidal cells. Adjacent thyroid tissue is compressed and shows focal dense infiltration by lymphocytes amounting at the formation of lymphoid follicles with intact active germinal centers. Related follicles show degeneration but no evidence of oxyphil change of the follicular epithelium. No evidence of hyperfunction or malignancy.
Rt. hemithyroidectomy.
Rt. hemithyroidectomy specimen measured 4.5x2.5x2 cm. Thyroid capsule is intact. Serial sectioning revealed grey nodule measuring 3x2.3x1.8 cm.
Rt. Hemithyroidecyomy: