Related Experiment Video
Updated: Feb 11, 2026
04:39
Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model
Published on: March 17, 2023
2.5K
Ectopic Thyroid in Stomach; a Case Report
Parvin Rajabi1, Seyed-Mehdi Eftekhari1, Elham Rouhani1
1Dept. of Pathology, Isfahan University of Medical Sciences, Isfahan, Iran.
Iranian Journal of Pathology
|May 8, 2018
Summary
Ectopic thyroid is a thyroid dysgenesis where the gland is found outside its normal location, most commonly at the base of the tongue. While often asymptomatic, it can cause symptoms and even malignancy.
Area of Science:
- Endocrinology
- Developmental Biology
- Surgical Pathology
Background:
- Ectopic thyroid is a congenital condition characterized by thyroid tissue located outside the normal anatomical position.
- Thyroid dysgenesis encompasses a spectrum of developmental abnormalities of the thyroid gland.
Observation:
- The most common site for ectopic thyroid tissue is the base of the tongue.
- Ectopic thyroid glands can vary in size and may be associated with surrounding anatomical structures.
Findings:
- Most ectopic thyroid presentations are asymptomatic.
- Potential symptoms include compressive effects due to size, hormonal dysfunction (hypothyroidism or hyperthyroidism), and rarely, malignancy.
- Diseases affecting the orthotopic thyroid gland can also occur in ectopic thyroid tissue.
Implications:
- Understanding ectopic thyroid locations is crucial for accurate diagnosis and management.
- Early detection of hormonal dysfunction or malignancy in ectopic thyroid tissue is essential.
- Further research into the embryological origins of thyroid dysgenesis can improve clinical outcomes.
Related Concept Videos
01:21Stomach pH Regulation
7.3K
The human body carefully regulates the internal pH of different organs to maintain homeostasis. For example, while the blood plasma maintains a neutral pH of 7, the stomach lumen has an acidic pH of 1.5 - 3.5. The low pH of stomach lumen helps kill pathogens in the food and break down complex food molecules.
The acid-secreting gastric mucosal epithelial cells (parietal cells) lining the stomach lumen maintain the low pH in the lumen. Numerous ion transporters and channels on these parietal...
The acid-secreting gastric mucosal epithelial cells (parietal cells) lining the stomach lumen maintain the low pH in the lumen. Numerous ion transporters and channels on these parietal...
7.3K
01:26Stomach Histology
3.2K
The stomach comprises several layers that work together to facilitate digestion and protect the organ. The outermost layer is called the serosa, which provides support and protection to the stomach. The muscularis externa layer is responsible for the mechanical breakdown of food by contracting and moving the stomach. The submucosa layer, located beneath the muscularis externa, contains connective tissue, blood vessels, nerves, and glands that secrete mucus and other substances essential for...
3.2K
01:16Gross Anatomy of the Stomach
3.2K
The human stomach is a vital part of the digestive system, performing multiple functions. It is located within the peritoneum, a serous membrane that lines the abdominal cavity. The stomach plays a central role in processing food substances and interacts with other digestive organs through coordinated digestive processes. The stomach has a characteristic J-shape and is divided into four main regions. The cardia is the first section where the esophagus connects to the stomach and is the entry...
3.2K
01:25Mucosal Barrier of the Stomach
2.5K
The gastric glands contain parietal cells that secrete hydrochloric acid (HCl) for digestion. The cells secrete HCl because it is highly corrosive and essential for breaking down food. To achieve this, they secrete hydrogen and chloride ions into the lumen of the gastric glands, which combine to form HCl.
Within parietal cells, carbonic acid is first formed through the reaction of water and carbon dioxide. The dissociation of carbonic acid releases bicarbonate and hydrogen ions. The bicarbonate...
Within parietal cells, carbonic acid is first formed through the reaction of water and carbon dioxide. The dissociation of carbonic acid releases bicarbonate and hydrogen ions. The bicarbonate...
2.5K
01:25Hormones Secreted by the Stomach
2.8K
Enteroendocrine cells, accounting for only 1% of stomach epithelial cells, play a significant role in digestion and are classified by their digestive hormone secretions.
Each of these hormones secreted by different enteroendocrine cells plays a unique role in digestion. Here are a few examples:
Each of these hormones secreted by different enteroendocrine cells plays a unique role in digestion. Here are a few examples:
2.8K
01:23The Thyroid Gland
7.8K
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...
The follicles have a central cavity lined by simple cuboidal to squamous epithelial cells called follicular cells. These cells produce the glycoprotein...
7.8K