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Related Concept Videos

The Thyroid Gland01:23

The Thyroid Gland

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...
Ultrasonography01:17

Ultrasonography

Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called a...
Imaging Studies II: Ultrasonography01:24

Imaging Studies II: Ultrasonography

IntroductionUltrasonography, or renal ultrasound, is a noninvasive medical imaging technique that uses high-frequency sound waves to visualize the kidneys, ureters, bladder, and surrounding tissues.Indications for Urinary System UltrasonographyUrinary system ultrasonography is indicated in various clinical scenarios, such as:Kidney Stones (Urolithiasis): To detect and monitor the size and presence of kidney or urinary tract stones.Hydronephrosis: To assess the dilation of the renal pelvis and...
Papillary Dermis01:11

Papillary Dermis

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 and...
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...
Ultrasound I: Abdominal Ultrasonography01:20

Ultrasound I: Abdominal Ultrasonography

Introduction:
Abdominal ultrasonography, commonly known as abdominal ultrasound, is a vital, non-invasive medical imaging technique widely used in healthcare.
Procedure:
This diagnostic tool allows the clinician to visually inspect internal structures within the abdomen, including vital organs such as the liver, gallbladder, pancreas, kidneys, and spleen.
The abdominal ultrasound process begins with applying a special gel to the patient's skin over the abdomen. This gel enhances the...

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Updated: Jun 15, 2026

Synchronous Triplanar Reconstruction Integrated with Color Doppler Mapping for Precise and Rapid Localization of Thyroid Lesions
05:41

Synchronous Triplanar Reconstruction Integrated with Color Doppler Mapping for Precise and Rapid Localization of Thyroid Lesions

Published on: February 9, 2024

Papillary thyroid carcinoma on sonography.

Quan-shui Li1, Sheng-hua Chen, Hua-hua Xiong

  • 1Department of Ultrasonography, Shenzhen Second Hospital, Shenzhen, China. liquanshui@sohu.com

Clinical Imaging
|March 2, 2010
PubMed
Summary
This summary is machine-generated.

Color duplex sonography (CDUS) helps detect papillary thyroid carcinoma (PTC) and lymph node metastasis. Key indicators include hypoechoic nodules with vascularity, ill-defined borders, and microcalcifications.

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Area of Science:

  • Radiology
  • Oncology
  • Endocrinology

Background:

  • Papillary thyroid carcinoma (PTC) is a common endocrine malignancy.
  • Accurate preoperative diagnosis is crucial for effective surgical planning.

Purpose of the Study:

  • To investigate the sonographic characteristics of papillary thyroid carcinomas (PTCs) using color duplex sonography (CDUS).
  • To identify key features indicative of PTC and cervical lymph node metastasis.

Main Methods:

  • Retrospective review of 115 PTC nodules (104 patients) confirmed by pathology.
  • Analysis of nodule size, border, echotexture, calcification, and hemodynamics (PSV, RI) on CDUS.
  • Evaluation of cervical lymph node characteristics on CDUS.

Main Results:

  • Nodule size correlated significantly with vascularity in PTC (P=.000).
  • Microcalcifications increased suspicion for malignancy.
  • Hypoechoic nodules with abundant internal vascularity, ill-defined borders, and microcalcifications were highly suggestive of PTC.

Conclusions:

  • CDUS is vital for early detection of PTC and lymph node metastasis, aiding surgical planning.
  • Recognizing PTC manifestations on CDUS improves diagnostic accuracy.
  • CDUS-guided fine-needle aspiration is standard for diagnosing thyroid carcinoma and metastasis.