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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.
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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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Radiological investigations, including X-rays and computed tomography (CT) scans, are critical for diagnosing and evaluating various medical conditions. These imaging techniques provide valuable insights into the body's internal structures, aiding in the detection of abnormalities, assessment of disease progression, and development of treatment strategies. This article delves into two primary radiological investigations, chest X-rays and CT scans, outlining their purpose, procedures, and...
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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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Thyroid nodule update on diagnosis and management.

Shrikant Tamhane1,2, Hossein Gharib1,2

  • 1Mayo Clinic College of Medicine, Rochester, MN 55905 USA.

Clinical Diabetes and Endocrinology
|July 14, 2017
PubMed
Summary

Thyroid nodules are common and require careful evaluation to rule out cancer. This review covers updated approaches and molecular tests for assessing and managing these nodules.

Keywords:
BenignFNAMalignantManagementMolecular markersThyroidThyroid nodulesUltrasonography

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Area of Science:

  • Endocrinology
  • Oncology
  • Diagnostic Imaging

Background:

  • Thyroid nodules are highly prevalent, with a small percentage being malignant.
  • Increasingly frequent incidental diagnoses due to advanced imaging techniques.
  • Clinical significance includes malignancy exclusion, functional assessment, and symptom evaluation.

Purpose of the Study:

  • To review current evidence-based approaches for thyroid nodule assessment.
  • To discuss advances in diagnostic tools, including molecular testing.
  • To provide guidance on the management of thyroid nodules.

Main Methods:

  • Literature review of recent guidelines and supporting evidence.
  • Analysis of diagnostic advancements in thyroid nodule evaluation.
  • Synthesis of information on molecular tests for malignancy assessment.

Main Results:

  • Evidence-based approaches are crucial for managing common thyroid nodules.
  • New molecular tests offer improved accuracy in malignancy evaluation.
  • Updated guidelines incorporate recent diagnostic and management strategies.

Conclusions:

  • The increasing prevalence of thyroid nodules necessitates standardized, evidence-based assessment.
  • Molecular testing represents a significant advancement in differentiating benign from malignant nodules.
  • Effective management relies on integrating new diagnostic tools with current clinical guidelines.