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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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Pericarditis is defined as the inflammation of the pericardium, the thin, sac-like membrane surrounding the heart. This condition can cause significant chest pain and other symptoms, often necessitating medical intervention. The pericardium has two layers: the inner visceral layer and the outer parietal layer, separated by a small amount of fluid that reduces friction during heartbeats.Types of PericarditisPericarditis can be classified into several types based on the duration and nature of the...
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Pericarditis is distinguished by inflammation of the pericardium, the fibrous sac that encases the heart. It can be acute, lasting less than six weeks, or chronic, persisting for over three months. Understanding its clinical manifestations and diagnostic findings is crucial for timely and effective management.Clinical ManifestationsWhile pericarditis can be asymptomatic, it usually presents with characteristic symptoms such as:Chest Pain: The most characteristic symptom of pericarditis is chest...
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Appendicitis is an acute inflammatory condition of the vermiform appendix, most commonly caused by obstruction of its lumen. The appendix is a narrow, blind-ended pouch that extends from the cecum, making it particularly prone to obstruction. Causes include fecaliths, lymphoid hyperplasia (often after viral infections), parasites, tumors, or foreign bodies. This obstruction initiates a cascade of pathological changes.Luminal Obstruction and Early InflammationAfter obstruction, normal mucosal...
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The primary objectives of managing pericarditis are to determine the underlying cause, provide effective therapy for treatment and symptom relief, and promptly detect signs and symptoms of cardiac tamponade. The following outlines the essential aspects of medical management for pericarditis:ObjectivesDetermine the Cause: Identifying the underlying cause of pericarditis is crucial for targeted treatment. Causes include viral infections, autoimmune diseases, post-cardiac injury syndrome, and...
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Related Experiment Video

Updated: Apr 27, 2026

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

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Intrapericardial parathyroid adenoma†.

Kristin L Long1, Cortney Y Lee2, Chand Ramaiah3

  • 1Department of General Surgery, University of Kentucky, Lexington, KY, USA kristin.long@uky.edu.

Journal of Surgical Case Reports
|June 26, 2014
PubMed
Summary
This summary is machine-generated.

Primary hyperparathyroidism due to parathyroid adenoma can occur in unusual locations. This case highlights an intrapericardial parathyroid gland causing severe kidney issues after prior neck surgery.

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Area of Science:

  • Endocrinology
  • Surgical Oncology
  • Nephrology

Background:

  • Primary hyperparathyroidism is frequently caused by parathyroid adenomas.
  • Ectopic parathyroid glands are occasionally found in various locations, including the thoracic cavity.

Observation:

  • A patient with severe, recurrent nephrolithiasis and acute renal failure underwent bilateral neck exploration for primary hyperparathyroidism.
  • The initial neck exploration failed to locate the source of hyperparathyroidism.

Findings:

  • Repeat imaging revealed a mediastinal parathyroid adenoma within the aortopulmonary window.
  • Surgical management required a median sternotomy after failed minimally invasive thoracotomy approaches.

Implications:

  • This case underscores the importance of considering ectopic parathyroid glands, even within the pericardium, in cases of persistent primary hyperparparathyroidism.
  • Advanced imaging and surgical strategies may be necessary for locating and resecting mediastinal parathyroid adenomas.