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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...
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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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Goiter refers to an abnormal enlargement of the thyroid gland that may appear as a diffuse goiter (uniform enlargement) or nodular (single or multiple nodules). Functionally, it is classified as nontoxic (normal/low hormone levels) or toxic (excess hormone production).PathophysiologyDiffuse thyroid enlargement typically results from prolonged stimulation by thyroid-stimulating hormone (TSH) or TSH-like agents, commonly seen in hypothyroidism or iodine deficiency. In contrast, in hyperthyroid...
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Related Experiment Video

Updated: Jun 25, 2026

Transoral Endoscopic Thyroidectomy Vestibular Approach for Thyroid Lobectomy
05:12

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Published on: May 12, 2023

Thyroglossal duct cyst: case series.

D Tamiolakis1, T S Chimona, E Proimos

  • 1Department of Cytopathology, Regional Hospital of Chania, Crete, Greece. cyto@chaniahospital.gr

Chirurgia (Bucharest, Romania : 1990)
|March 12, 2009
PubMed
Summary
This summary is machine-generated.

Thyroglossal duct cysts (TDC) present varied clinical pictures despite their common embryonic origin. This case series highlights the diversity in presentation for these midline neck lesions.

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Area of Science:

  • Otolaryngology
  • Surgical Pathology
  • Embryology

Background:

  • Thyroglossal duct cysts (TDC) arise from remnants of the embryonic thyroglossal duct.
  • These midline neck masses typically present along the path from the tongue base to the thyroid gland.
  • Most TDCs are located near the thyrohyoid membrane.

Observation:

  • This study reviewed five cases of TDC managed at the Department of Ear-Nose-Throat Surgery.
  • Patient records from 1995-2006 were analyzed, including clinical history, examination, investigations, and histology.
  • Each of the five cases exhibited a distinct clinical presentation.

Findings:

  • The five TDC cases demonstrated significant variability in patient age, anatomical location, and associated clinical signs and symptoms.
  • Histological examination confirmed the diagnosis in all cases.
  • Diagnostic approaches and differential diagnoses for TDC were discussed.

Implications:

  • The varied presentations underscore the importance of considering TDC in the differential diagnosis of neck masses.
  • Understanding the spectrum of TDC manifestations aids in accurate diagnosis and appropriate management.
  • This case series contributes to the literature on the diverse clinical behavior of thyroglossal duct cysts.