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Related Concept Videos

Hyperthyroidism II: Pathophysiology01:27

Hyperthyroidism II: Pathophysiology

Hyperthyroidism is a hypermetabolic state caused by elevated levels of thyroid hormones, triiodothyronine (T3) and thyroxine (T4). It results from dysregulation at the thyroid, pituitary, or immune system level and affects multiple organ systems.PathophysiologyThe most common cause of hyperthyroidism is Graves’ disease, an autoimmune disorder in which antibodies, specifically thyroid-stimulating antibodies (TSAb), a subtype of TSH receptor antibodies (TRAb), bind to and activate TSH receptors...
Hyperthyroidism I: Introduction01:25

Hyperthyroidism I: Introduction

Hyperthyroidism is a type of thyrotoxicosis characterized by the thyroid gland's overproduction of the thyroid hormones triiodothyronine (T3) and thyroxine (T4). This hormone excess increases the basal metabolic rate and enhances sensitivity to catecholamines.DiagnosisDiagnosis is based on clinical features and biochemical testing. It typically shows suppressed thyroid-stimulating hormone (TSH) levels below 0.4 mIU/L, with elevated free T3 and/or T4. Additional tests, including thyroid...
Graves Disease II: Pathophysiology01:24

Graves Disease II: Pathophysiology

Graves’ disease is an autoimmune disorder characterized by the production of thyroid-stimulating immunoglobulins (TSI) that activate TSH receptors, leading to excessive synthesis and release of thyroid hormones (T3 and T4) and resulting in hyperthyroidism.Among all causes of hyperthyroidism, Graves’ disease is the most common and can happen at any age, though it is more frequent in women. It produces a hypermetabolic state with features such as weight loss, tachycardia, tremor, and heat...
The Thyroid Gland01:23

The Thyroid Gland

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...
Graves' Disease I: Introduction01:28

Graves' Disease I: Introduction

Graves' disease is an autoimmune disorder that causes hyperthyroidism, or overactivity of the thyroid gland. It results from autoantibodies called thyroid-stimulating immunoglobulins (TSIs), which bind to thyroid-stimulating hormone (TSH) receptors, leading to overstimulation of hormone production and a hypermetabolic state.EtiologyAlthough considered idiopathic, Graves’ disease has well-established contributing factors. There is a strong genetic component, with increased prevalence in...
Hypothyroidism II: Pathophysiology01:23

Hypothyroidism II: Pathophysiology

Hypothyroidism is a disorder characterized by insufficient production of thyroid hormones, which regulate metabolism, energy balance, and multiple organ systems.TypesHypothyroidism is classified based on the level of dysfunction. Primary hypothyroidism results from intrinsic thyroid gland dysfunction, causing reduced hormone production despite normal or increased stimulation. Secondary hypothyroidism arises from inadequate thyroid-stimulating hormone (TSH) secretion by the pituitary. Tertiary...

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Related Experiment Video

Updated: May 19, 2026

Spontaneous Murine Model of Anaplastic Thyroid Cancer
05:39

Spontaneous Murine Model of Anaplastic Thyroid Cancer

Published on: February 3, 2023

Thyroid microcarcinoma.

Furio Pacini1

  • 1Department of Internal Medicine, Endocrinology & Metabolism and Biochemistry, Section of Endocrinology and Metabolism, University of Siena, Via Bracci, 53100 Siena, Italy. pacini8@unisi.it

Best Practice & Research. Clinical Endocrinology & Metabolism
|August 7, 2012
PubMed
Summary
This summary is machine-generated.

Thyroid microcarcinoma, often found incidentally in patients over 45, requires careful management due to its low risk. Guidelines now focus on minimizing interventions while ensuring quality of life and effective treatment.

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Area of Science:

  • Endocrinology
  • Oncology
  • Pathology

Background:

  • Thyroid microcarcinoma is the most common differentiated thyroid cancer in patients over 45.
  • Incidental findings during neck ultrasound are frequent.
  • These tumors have low morbidity and mortality rates.

Purpose of the Study:

  • To review the clinical and pathological features of thyroid microcarcinoma.
  • To establish a rationale for diagnostic and therapeutic interventions.
  • To align management with patient quality of life and normal life expectancy.

Main Methods:

  • Literature review of clinical and pathological data.
  • Analysis of prevalence, presentation, and genetic factors.
  • Evaluation of European and American guidelines.

Main Results:

  • Thyroid microcarcinoma definition, prevalence, and presentation are summarized.
  • Pathological and genetic features are discussed.
  • Clinical impact and guideline recommendations are analyzed.

Conclusions:

  • Management strategies should minimize diagnostic and therapeutic procedures.
  • Effective treatment and diagnostic accuracy must be maintained.
  • Focus on preserving patient quality of life is essential.