Related Experiment Video
Updated: May 12, 2026
07:12
Establishment of a Simple and Effective Rat Model for Intraoperative Parathyroid Gland Imaging
Published on: August 17, 2022
Intrathymic parathyroid adenoma presenting with seizures
L Pierrache1, K Van Kolen, S Heyman
1Department of Thoracic and Vascular Surgery, Antwerp University Hospital, Belgium.
Acta Chirurgica Belgica
|April 5, 2013
Summary
A rare intrathymic parathyroid adenoma caused severe hypercalcemia and hypoglycemia in a diabetic patient. Surgical removal resolved symptoms, improving diabetes control.
Area of Science:
- Endocrinology
- Surgical Oncology
- Internal Medicine
Background:
- Parathyroid adenomas typically occur in the neck, but ectopic locations can present diagnostic challenges.
- Intrathymic parathyroid adenomas are rare and can mimic other mediastinal masses.
- Concurrent diabetes mellitus complicated the presentation, necessitating careful management of metabolic disturbances.
Observation:
- A 59-year-old diabetic patient presented with loss of consciousness and seizures.
- Biochemical analysis revealed both hypercalcemia and hypoglycemia.
- Imaging studies, including CT and technetium scans, identified a retrosternal nodule.
Findings:
- Radical thymectomy via median sternotomy was performed.
- Histopathological diagnosis confirmed an intrathymic parathyroid adenoma.
- Post-operative follow-up demonstrated resolution of metabolic abnormalities and improved diabetes control.
Implications:
- This case highlights the importance of considering ectopic parathyroid tissue in the differential diagnosis of mediastinal masses.
- Successful surgical resection of intrathymic parathyroid adenomas can lead to complete clinical recovery.
- Multidisciplinary management is crucial for patients with complex endocrine and metabolic conditions.
Related Concept Videos
01:24Graves 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...
01:25Hyperthyroidism 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...
01:27Hyperthyroidism 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...
01:28Graves' 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...
00:59The 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...
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...
01:20Seizures l: Introduction
Understanding seizures and epilepsy relies on key definitions that help in recognizing, classifying, and managing these disorders. These definitions provide a framework for recognizing, classifying, and managing seizure disorders.DefinitionsA seizure is a sudden, abnormal burst of electrical activity in the brain that can cause changes in awareness, movement, sensation, or behavior, depending on the area involved. Epilepsy is a chronic condition characterized by recurrent, unprovoked seizures,...