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An autonomous thyroid nodule or "hot nodule" is one that has thyroid function independent of the homeostatic control of the HPT axis (hypothalamic–pituitary–thyroid axis). According to a 1993 article, such nodules need to be treated only if they become toxic; surgical excision (thyroidectomy), radioiodine therapy, or both may be used. [32]
Treatment of a thyroid nodule depends on many things including size of the nodule, age of the patient, the type of thyroid cancer, and whether or not it has spread to other tissues in the body. If the nodule is benign, patients may receive thyroxine therapy to suppress thyroid-stimulating hormone and should be reevaluated in six months. [2]
Thyroiditis is generally caused by an immune system attack on the thyroid, resulting in inflammation and damage to the thyroid cells. This disease is often considered a malfunction of the immune system and can be associated with IgG4-related systemic disease, in which symptoms of autoimmune pancreatitis, retroperitoneal fibrosis and noninfectious aortitis also occur.
Papillary thyroid cancer (magnified at right) arising within ectopic thyroid tissue of a thyroglossal cyst is a rare occurrence (less than 1% of such cysts). [38] According to Surveillance, Epidemiology, and End Results (SEER), the incidence of papillary cancer has increased from 4.8 to 14.9 per 100,000 from 1975 to 2012. Females are more ...
Thyroglossal cyst with papillary excrescences (magnified at right), where microscopy showed papillary thyroid cancer. Rarely (in less than 1% of cases), cancer may be present in a thyroglossal duct cyst. [6] These tumors are generally papillary thyroid carcinomas, [6] arising from the ectopic thyroid tissue within the cyst. [7] [8]
[1] [2] [3] Thyroid function test will evolve through the three phases of thyrotoxicosis, hypothyroidism, and euthyroid state. In the thyrotoxic phase, thyroid stimulating hormone (TSH) will be low with high or normal levels of thyroid hormones. Inflammatory markers such as C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR) are ...
Occurrences of AIT are most common in patients with prior thyroid disease such as Hashimoto's thyroiditis or thyroid cancer. The most common cause of infection in children is a congenital abnormality such as pyriform sinus fistula. [5] In most cases, the infection originates in the piriform sinus and spreads to the thyroid via the fistula. [7]
Medullary thyroid carcinoma may also produce a thyroid nodule and enlarged cervical lymph nodes. [4] Sites of spread of medullary thyroid carcinoma include local lymph nodes in the neck, lymph nodes in the central portion of the chest (mediastinum), liver, lung, and bone. Spread to other sites such as skin or brain occurs but is uncommon.