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Related Concept Videos

The Parathyroid Glands00:59

The Parathyroid Glands

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.
Oxyphil cells, whose functions remain elusive, emerge during late puberty, adding a layer of complexity to the parathyroid gland's intricacies. In contrast, principal parathyroid cells undertake a vital role by producing...
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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Related Experiment Video

Updated: Jun 11, 2026

Establishment of a Simple and Effective Rat Model for Intraoperative Parathyroid Gland Imaging
07:12

Establishment of a Simple and Effective Rat Model for Intraoperative Parathyroid Gland Imaging

Published on: August 17, 2022

[Parathyroid cyst. Case report].

Roberto Ciuni1, Salvatore Ciuni, Giuliana Monaco

  • 1Unità Operativa Clinica Chirurgica, Dipartimento di Chirurgia, Azienda Ospedaliera Universitaria "Vittorio Emanuele - Ferrarotto - S. Bambino", Catania. ciuni.r@gmail.com

Annali Italiani Di Chirurgia
|July 3, 2010
PubMed
Summary
This summary is machine-generated.

Parathyroid cysts (PCS) are rare neck swellings, often mistaken for thyroid nodules. Diagnosis involves ultrasound and fine-needle aspiration (FNA) to measure parathyroid hormone (PTH) levels, with aspiration as the primary treatment.

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Generation of Hypoparathyroid Rats via Carbon-Nanoparticle-Assisted Parathyroidectomy
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Generation of Hypoparathyroid Rats via Carbon-Nanoparticle-Assisted Parathyroidectomy

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Related Experiment Videos

Last Updated: Jun 11, 2026

Establishment of a Simple and Effective Rat Model for Intraoperative Parathyroid Gland Imaging
07:12

Establishment of a Simple and Effective Rat Model for Intraoperative Parathyroid Gland Imaging

Published on: August 17, 2022

Generation of Hypoparathyroid Rats via Carbon-Nanoparticle-Assisted Parathyroidectomy
03:57

Generation of Hypoparathyroid Rats via Carbon-Nanoparticle-Assisted Parathyroidectomy

Published on: July 14, 2023

Area of Science:

  • Endocrinology
  • Surgical Pathology
  • Diagnostic Imaging

Background:

  • Parathyroid cysts (PCS) are uncommon endocrine neoplasms, with fewer than 300 reported cases.
  • Often presenting as asymptomatic neck swellings, PCS can be misdiagnosed as thyroid nodules.
  • PCS are classified as functional (associated with hyperparathyroidism) or non-functional (true cysts).

Observation:

  • Non-functional PCS, representing approximately 10% of cases, are characterized by secretory epithelium lining.
  • Functional PCS result from cystic degeneration of parathyroid adenomas.
  • Diagnosis necessitates a high index of suspicion and specialized knowledge.

Findings:

  • Ultrasound with fine-needle aspiration (FNA) is the primary diagnostic modality.
  • Ultrasound assesses cystic lesion nature and vasculature; FNA analyzes fluid characteristics and parathyroid hormone (PTH) levels.
  • Intracystic PTH measurement is the gold standard for PCS diagnosis.

Implications:

  • Accurate diagnosis of parathyroid cysts is crucial for appropriate management.
  • Fine-needle aspiration (FNA) can be curative, but surgical intervention may be required for recurrent cases.
  • Understanding the distinct origins of functional and non-functional PCS aids in diagnosis and treatment planning.