Hashimoto thyroiditis
Grossly the thyroid is usually symmetrically enlarged and firm, with a bosselated surface. As a result of disappearance of brown (iodine-rich) colloid, and its replacement by lymphocytes, the cut surface is whitish rather than normal brown color.Cut surface of thyroid involved by Hashimoto's thyroiditis. The appearance is reminiscent of a hyperplastic lymph node.
Hashimoto thyroiditis
This symmetrically small thyroid gland demonstrates atrophy. This patient was hypothyroid. This is the end result of Hashimoto's thyroiditis. Initially, the thyroid is enlarged and there may be transient hyperthyroidism, followed by a euthyroid state and then hypothyroidism with eventual atrophy years later.
Hashimoto thyroiditis
Hashimoto thyroiditis
Hashimoto's thyroiditis demonstrates the pink Hurthle cells at the center and right. The lymphoid follicle is at the left. Hashimoto's thyroiditis initially leads to painless enlargement of the thyroid, followed by atrophy years later.Hashimoto thyroiditis