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Related Concept Videos

The Thyroid Gland01:23

The Thyroid Gland

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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...
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Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
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Metastasis

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Metastasis is the spread of cancer cells from the original site to distant locations in the body. Cancer cells can spread via blood vessels (hematogenous) as well as lymph vessels in the body.
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Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
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Primary Lymphoid Organs01:16

Primary Lymphoid Organs

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Primary lymphoid organs are pivotal in the formation, development, and maturation of lymphocytes, the white blood cells that serve as the backbone of our immune system. This crucial function underscores their fundamental role in maintaining our overall health and immunity. The two primary lymphoid organs of prime importance are the red bone marrow and the thymus.
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The Tumor Microenvironment

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Related Experiment Video

Updated: Sep 5, 2025

An Orthotopic Mouse Model of Anaplastic Thyroid Carcinoma
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Thymomas With Intravascular and Intracardiac Growth.

Andrea Valeria Arrossi1, Josephine K Dermawan2, Michael Bolen3

  • 1Department of Pathology, Robert J. (R.J) Tomsich Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, OH, United States.

Frontiers in Oncology
|July 11, 2022
PubMed
Summary

Thymomas, the most common anterior mediastinum tumors, can invade nearby structures. This overview focuses on rare cases of thymoma with intravascular and intracardiac growth, impacting prognosis.

Keywords:
intravascular growthintravascular growth patterninvasive thymomastagingsuperior vena cava syndrome

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Related Experiment Videos

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Area of Science:

  • Oncology
  • Thoracic Surgery
  • Pathology

Background:

  • Thymomas are primary anterior mediastinal tumors originating from thymic epithelial cells.
  • While histotypes have controversial prognostic correlation, staging and resection status are key predictors of outcomes.
  • Thymomas' malignant potential lies in invasion and metastasis, often involving adjacent structures.

Approach:

  • This content provides an overview of thymomas, focusing on their rare intravascular and intracardiac involvement.
  • It reviews common denominators in staging systems, such as transcapsular invasion and adjacent structure involvement.
  • The overview discusses clinical presentations, including superior vena cava syndrome, resulting from direct invasion.

Key Points:

  • Intravascular and intracardiac thymoma growth, with or without direct mural invasion, is a rare but significant finding.
  • Direct invasion of great vessels and the heart is a common pathway for advanced thymoma.
  • Understanding these rare growth patterns is crucial for accurate diagnosis and treatment planning.

Conclusions:

  • Thymoma staging and resection status are critical for predicting oncologic behavior and patient outcomes.
  • Rare intravascular and intracardiac extension of thymoma presents unique diagnostic and therapeutic challenges.
  • Further research into the mechanisms and management of these invasive thymomas is warranted.