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Related Concept Videos

The Thyroid Gland01:23

The Thyroid Gland

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The thyroid gland is a small, butterfly-shaped gland located in the neck and covers the anterior surface of the trachea. The gland has two lateral lobes connected by a thin tissue mass called the isthmus. Internally, each lobe comprises many small spherical structures known as thyroid follicles, surrounded by a network of blood vessels.
The follicles have a central cavity lined by simple cuboidal to squamous epithelial cells called follicular cells. These cells produce the glycoprotein...
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Synthesis and Regulation of Thyroid Hormones01:20

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Low blood levels of the thyroid hormones — triiodothyronine (T3) and thyroxine (T4) — signal the hypothalamus to release the thyrotropin-releasing hormone (TRH). TRH then reaches the pituitary gland and stimulates the release of thyroid-stimulating hormone(TSH) into the bloodstream.
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The thyroid hormone (TH) plays a pivotal role in the intricate orchestration of physiological processes, exerting profound effects on development, metabolism, and homeostasis throughout different life stages.
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Calcitonin, a vital polypeptide hormone, regulates calcium levels within body fluids. It is released by the parafollicular cells, also known as C cells, situated in the follicular epithelium of the thyroid gland. Calcitonin responds to fluctuations in blood calcium levels and the influence of gastrointestinal hormones like gastrin and cholecystokinin.
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Metastasis is the spread of cancer cells from the original site to distant locations in the body. Cancer cells can spread via blood vessels (hematogenous) as well as lymph vessels in the body.
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The Parathyroid Glands00:59

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The two pairs of parathyroid glands embedded within the posterior surface of the thyroid gland are restricted by a dense capsule around them. These glands comprise two distinct cell populations—parathyroid oxyphil and parathyroid principal cells- pivotal in calcium homeostasis.
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An Orthotopic Mouse Model of Anaplastic Thyroid Carcinoma
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Follicular cell-derived thyroid cancer.

Henning Dralle1, Andreas Machens1, Johanna Basa2

  • 1Department of General, Visceral and Vascular Surgery, University Hospital, University of Halle-Wittenberg, Ernst-Grube-Strasse 40, D-06097 Halle, Germany.

Nature Reviews. Disease Primers
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Summary

Follicular cell-derived thyroid cancers require personalized medicine due to overdiagnosis and treatment side effects. Risk stratification and targeted therapies are key for improving patient quality of life.

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Area of Science:

  • Endocrinology
  • Oncology
  • Molecular Biology

Background:

  • Follicular cell-derived thyroid cancers originate from thyroid follicular cells.
  • Classifications include papillary (80-85%), follicular (10-15%), poorly differentiated (<2%), and undifferentiated (<2%) types, with most having good prognoses except undifferentiated.
  • Advanced diagnostics have led to overdiagnosis of clinically insignificant papillary thyroid cancers.

Purpose of the Study:

  • To highlight the evolving landscape of thyroid cancer diagnosis and management.
  • To advocate for personalized medicine approaches based on individual risk assessment.
  • To emphasize the need for strategies that improve survivor quality of life by minimizing treatment-related harm.

Main Methods:

  • Review of current diagnostic techniques and their impact on thyroid cancer detection.
  • Analysis of surgical and radioiodine ablation risks versus benefits.
  • Discussion of molecular and clinical risk stratification strategies.

Main Results:

  • Overdiagnosis of occult papillary thyroid cancer is prevalent due to advanced diagnostic tools.
  • Surgical complications (recurrent laryngeal nerve, parathyroid injury) and radioiodine ablation risks can negatively impact quality of life.
  • Despite favorable outcomes for most types, survivor quality of life is often diminished.

Conclusions:

  • Management strategies must shift towards personalized medicine, integrating risk stratification.
  • Minimizing treatment-related sequelae is crucial for improving health-related quality of life in thyroid cancer survivors.
  • Future research should focus on identifying actionable targets for individualized therapies and widespread adoption of risk stratification.