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Related Concept Videos

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The key difference between Superficial Vein Thrombosis (SVT) and Deep Vein Thrombosis (DVT) lies in their location and severity.Clinical ManifestationsSVT typically presents with localized pain, tenderness, and redness along the course of a superficial vein, often accompanied by a palpable, cord-like structure under the skin. This condition is usually less dangerous than DVT but can be uncomfortable and may lead to complications such as cellulitis or, rarely, a clot extension into the deep...
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Varicose veins, or varicosities, develop when the valves in the veins, which control blood flow, weaken or damage. It causes blood to pool and the veins to enlarge. Understanding the clinical manifestations, diagnostic approaches, and management options for varicose veins is crucial for effective treatment and relief.Clinical manifestationsClinical manifestations of varicose veins include a heavy, achy feeling or pain after prolonged standing or sitting. This discomfort can often be relieved by...
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Venous Thrombosis I: Introduction01:30

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Venous thrombosis, the most common disorder of the veins, involves the formation of a thrombus or blood clot associated with vein inflammation. It can be classified as either superficial vein thrombosis or deep vein thrombosis.Superficial Vein Thrombosis: This involves the formation of a thrombus in a superficial vein, usually the greater or lesser saphenous vein. Though less severe than deep vein thrombosis (DVT), SVT can lead to complications if untreated.Deep Vein Thrombosis (DVT): This...
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Varicose veins, or varicosities, are abnormally dilated and twisted superficial veins caused by venous valve incompetence. This condition commonly affects the lower extremities, especially the saphenous veins, due to the higher pressure from prolonged standing and walking. However, varicosities can also occur in other areas, such as the esophagus, vulva, spermatic cords, and anorectal region.Etiology and typesPrimary varicose veins, often idiopathic, are more common in women due to inherent...
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Esophageal varices are dilated, tortuous veins which are found mainly in the submucosa of the lower esophagus but which may also appear higher up or extend into the stomach. They develop due to increased pressure in the portal venous system, often as a result of liver cirrhosis. This condition scars and damages the liver, impeding normal blood flow through the portal vein. To compensate, blood seeks alternative pathways, forming fragile new vessels (varices) in the esophagus and stomach. These...
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Veins are an integral part of our circulatory system, serving as the blood vessels that transport blood from all body regions to the heart. They are a network of hollow tubes that carry blood low in oxygen from the body's cells back to the heart for reoxygenation. Veins are crucial for maintaining the body's overall fluid balance and the continuous circulation of blood.
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A Patient-Derived Xenograft Model for Venous Malformation
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Verrucous venous malformation.

Joan Leavens1, Scott Worswick, Gene H Kim

  • 1Department of Dermatology, Keck School of Medicine, University of Southern California, Los Angeles, CA. Joan.leavens@med.usc.edu.

Dermatology Online Journal
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Summary
This summary is machine-generated.

Verrucous venous malformation is a rare skin condition presenting as a hyperkeratotic plaque. Histopathology shows epidermal changes and dermal vessel proliferation, aiding diagnosis and management.

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Area of Science:

  • Dermatology
  • Vascular Malformations
  • Histopathology

Background:

  • Verrucous venous malformation (VVM), or verrucous hemangioma, is a superficial vascular malformation.
  • It is characterized by hyperkeratosis and composed of dermal capillaries and veins.

Observation:

  • A 53-year-old man presented with a large, hyperkeratotic plaque on his left dorsal and plantar foot.
  • The lesion exhibited significant epidermal changes and vascular proliferation.

Findings:

  • Biopsy confirmed verrucous acanthosis of the epidermis.
  • Histopathology revealed a proliferation of thin-walled vessels within the dermis, consistent with VVM.

Implications:

  • This case contributes to understanding the clinical and histopathologic spectrum of VVM.
  • Accurate diagnosis and differential diagnosis are crucial for appropriate management of this rare entity.