Thyroid adenoma
(重定向自Toxic adenoma)

A thyroid adenoma is a benign tumor of the thyroid gland.
Almost all thyroid adenomas are follicular adenomas. Follicular adenomas can be described as "cold", "warm" or "hot" depending on their level of function. Histopathologically, follicular adenomas can be classified according to their cellular architecture and relative amounts of cellularity and colloid into the following types: