Often these abnormal growths of thyroid tissue are located at the edge of the thyroid gland and can be felt as a lump in the throat. When they are large, they can sometimes be seen as a lump in the front of the neck. Sometimes a<unk>  presents as a fluid-filled cavity called a thyroid cyst. Often, solid components are mixed with the fluid. Thyroid cysts most commonly result from degenerating thyroid adenomas, which are benign, but they occasionally contain malignant solid components.
Thyroid nodule
Thyroid cancer
Thyroid adenoma
Thyroid neoplasm
Thyroid lymphoma
Papillary thyroid cancer
Thymoma
Medullary thyroid cancer