Thyroid nodules

Throat | Otorhinolaryngology | Thyroid nodules (Disease)


Thyroid nodules are abnormal growths or swelling occurring in the thyroid gland. Most lumps are not cancerous (are benign) and not create problems. Many do not require treatment. Only about 5% of nodules are cancerous. They must be excised lymph surgical.

If your thyroid nodule is big can be palpated or may notice an increase in volume of the neck. In rare cases may experience: pain or fullness in the neck; difficulty in swallowing; difficulty in breathing; nervousness, tachycardia, sweating, weight loss or other symptoms of hyperthyroidism (excess thyroid hormone); Fatigue or depression, memory problems, constipation, dry skin, feeling cold or other symptoms or hyperthyroidism, hypothyroidism (deficiency of thyroid hormones).

Other conditions that cause similar symptoms are thyroiditis. Most of the hyperthyroidism and thyroid nodules are benign and not causing problems. Are often difficult to observe very small. Many people have nodules that are not discovered or treated before. There are three types of thyroid nodules: solid nodules filled with fluid (cystic) and partially cystic nodules. Can be solitary or multiple nodules present.

Causes and Risk factors

In rarely cause thyroid problems. When a nodule is producing too much thyroid hormone hyperthyroidism, the gland is overactive or extra functionally. There is not known the exact cause of thyroid nodules. It is known however, that those exposed to radiation have higher risk of developing thyroid nodules.

Exposure to environmental radiation or radiation therapy prior to the head, neck or chest (especially during childhood) increases risk of thyroid nodules. Experts estimate that thyroid nodules are transmitted genetically. So if a parent had thyroid nodules, children have higher risk of developing them. If another problem associated gland (goiter for example) the risk of thyroid nodules is huge. Most of the nodules are asymptomatic and are Unnoticed. Are often discovered at routine examination or investigations such as computed tomography or ultrasound performed for other reasons.

Diagnosis and Treatment

Treatment depends on the effect of these nodules. If the nodule is benign and causes no problems, it will be closely monitored without using anything. If symptoms may require medication or surgery. ...