Related Experiment Video
Updated: Feb 11, 2026

04:01
Transoral Robotic Total Thyroidectomy and Bilateral Central Regional Lymph Node Dissection for Papillary Thyroid Carcinoma
Published on: September 15, 2023
1.6K
SONOGRAPHIC FEATURES OF MULTIFOCAL PAPILLARY THYROID CARCINOMAS
Summary
Papillary thyroid carcinomas (PTCs) of the same subtype share similar sonographic features. This finding aids in the diagnosis and characterization of thyroid nodules.
Area of Science:
- Oncology
- Radiology
- Pathology
Background:
- Papillary thyroid carcinoma (PTC) is the most common type of thyroid cancer.
- Accurate pre-operative diagnosis of PTC subtypes is crucial for treatment planning.
- Sonographic features can aid in differentiating PTC subtypes, but consistency within subtypes is not well-established.
Purpose of the Study:
- To determine if papillary thyroid carcinomas (PTCs) of the same subtype exhibit similar sonographic features.
- To compare sonographic characteristics between primary, secondary, and daughter PTCs.
Main Methods:
- Retrospective analysis of pre-operative ultrasound (US) and pathologic findings in 137 patients with PTC.
- A single radiologist evaluated sonographic features of the largest and second largest PTCs.
- Similarity of sonographic features was assessed between primary, secondary, and daughter PTCs.
Main Results:
- In patients with multiple PTCs, those of the same subtype showed similar sonographic features.
- Daughter PTCs (secondary PTCs with the same subtype as the primary) demonstrated highly similar sonographic features to the primary PTC (94.1%).
- No significant differences were observed in size, location, sonographic features, or Korean Thyroid Imaging Reporting and Data System (K-TIRADS) category between primary and daughter PTCs.
Conclusions:
- Papillary thyroid carcinomas (PTCs) of the same subtype, particularly daughter PTCs, share similar sonographic features with the primary PTC.
- Sonographic evaluation can reliably identify similar features within the same PTC subtype, aiding in diagnosis.
Related Concept Videos
Papillary Dermis
5.9K
Dermis
The dermis might be considered the "core" of the integumentary system, as distinct from the epidermis and hypodermis. It contains blood and lymph vessels, nerves, and other structures, such as hair follicles and sweat glands. The dermis is made of two layers of connective tissue that comprise an interconnected mesh of elastin and collagenous fibers, produced by fibroblasts.
Papillary Layer
The papillary layer is made of loose, areolar connective tissue, which means the collagen...
The dermis might be considered the "core" of the integumentary system, as distinct from the epidermis and hypodermis. It contains blood and lymph vessels, nerves, and other structures, such as hair follicles and sweat glands. The dermis is made of two layers of connective tissue that comprise an interconnected mesh of elastin and collagenous fibers, produced by fibroblasts.
Papillary Layer
The papillary layer is made of loose, areolar connective tissue, which means the collagen...
5.9K
The 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
Functions of Thyroid Hormones
5.7K
The thyroid hormone (TH) plays a pivotal role in the intricate orchestration of physiological processes, exerting profound effects on development, metabolism, and homeostasis throughout different life stages.
TH is indispensable for the normal development and maturation of the skeletal, muscular, and nervous systems during fetal and childhood growth. It facilitates bone mineral turnover and regulates protein synthesis in developing tissues, contributing significantly to overall growth and...
TH is indispensable for the normal development and maturation of the skeletal, muscular, and nervous systems during fetal and childhood growth. It facilitates bone mineral turnover and regulates protein synthesis in developing tissues, contributing significantly to overall growth and...
5.7K
Synthesis and Regulation of Thyroid Hormones
8.0K
Low blood levels of the thyroid hormones — triiodothyronine (T3) and thyroxine (T4) — signal the hypothalamus to release the thyrotropin-releasing hormone (TRH). TRH then reaches the pituitary gland and stimulates the release of thyroid-stimulating hormone(TSH) into the bloodstream.
Upon reaching the thyroid gland, TSH stimulates the follicular cells' active uptake of iodide ions from the blood. The ions diffuse to the apical surface of the cells and are oxidized to iodine. The...
Upon reaching the thyroid gland, TSH stimulates the follicular cells' active uptake of iodide ions from the blood. The ions diffuse to the apical surface of the cells and are oxidized to iodine. The...
8.0K
COPD: Pathogenesis and Clinical Features
1.9K
Chronic obstructive pulmonary disease (COPD) is a group of lung conditions that progressively worsen over time, including chronic bronchitis and emphysema. This cluster of diseases collectively leads to a gradual and irreversible decline in lung function over time.
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...
1.9K
Special Features of Adaptive Immunity
3.4K
The adaptive immune system, a crucial component of the overall immune response, offers a highly specialized defense against pathogens. It involves specific cell types and features, enabling it to combat infections effectively and efficiently.
The primary cell types involved in adaptive immunity are T cells and B cells. Each type has a unique role in defending the body against pathogens. T cells are responsible for cell-mediated immunity. They identify and eliminate infected cells directly,...
The primary cell types involved in adaptive immunity are T cells and B cells. Each type has a unique role in defending the body against pathogens. T cells are responsible for cell-mediated immunity. They identify and eliminate infected cells directly,...
3.4K

