toxic adenoma<unk>  may be diagnosed via a thyroid function test in an individual suspected of having it. Types A<unk>  may be classified either as nodular or diffuse. Nodular<unk> s are either of one nodule (uninodular) or of multiple nodules (multinodular). ;Growth pattern: * Uninodular<unk> : one thyroid nodule; can be either inactive, or active (toxic) – autonomously producing thyroid hormone. * Multinodular<unk> : multiple nodules; can likewise be inactive or toxic, the latter is called toxic multinodular<unk>  and associated with hyperthyroidism. These nodules grow up at varying rates and secrete thyroid hormone autonomously, thereby suppressing TSH-dependent growth and function in the rest of gland. Inactive nodules in the same<unk>  can be malignant. Thyroid cancer is identified in 13.7% of the patients operated for multinodular<unk> . * Diffuse<unk> : the whole thyroid appearing to be enlarged due to hyperplasia. ;Size: * Class I: the<unk>  in normal posture of the head cannot be seen; it is only found by palpation. * Class II: the<unk>  is palpable and can be easily seen. * Class III: the<unk>  is very large and is retrosternal (partially or totally lying below the sternum), pressure results in compression marks.
Goitre
Pseudo-goitre
Endemic goitre
Thyroid nodule
Thymoma
Thyroiditis
Airsickness
Iron lung