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Related Concept Videos

Varicose Veins II: Diagnostic Studies and Interprofessional Care01:26

Varicose Veins II: Diagnostic Studies and Interprofessional Care

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...
Varicose Veins I: Introduction01:26

Varicose Veins I: Introduction

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...
Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies01:20

Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies

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...
Venous Thrombosis I: Introduction01:30

Venous Thrombosis I: Introduction

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...
Venous Thrombosis IV: Nursing Management01:30

Venous Thrombosis IV: Nursing Management

Nursing management begins with a thorough assessment of the patient's health history. Key factors include trauma to veins, peripherally inserted central catheters, varicose veins, recent pregnancy or childbirth, surgery, bacteremia, prolonged bed rest, atrial fibrillation, COPD, heart failure, cancer, coagulation disorders, myocardial infarction, spinal cord injury, stroke, prolonged travel, recent bone fractures, and dehydration. Review medication intake, particularly oral contraceptives,...
Diabetic Foot Ulcer01:31

Diabetic Foot Ulcer

Definition A diabetic foot ulcer (DFU) is a chronic, non-healing wound that develops in individuals with diabetes. It typically occurs on pressure-bearing areas such as the heel, metatarsal heads, or hallux, and carries a high risk of infection and amputation.Pathophysiology • The development of DFUs can be explained by four interconnected mechanisms: neuropathy, ischemia, infection, and impaired wound healing. • Neuropathy is the most common factor. Sensory neuropathy reduces pain perception,...

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Related Experiment Video

Updated: May 29, 2026

A Patient-Derived Xenograft Model for Venous Malformation
06:51

A Patient-Derived Xenograft Model for Venous Malformation

Published on: June 15, 2020

Chronic venous ulceration with associated angiosarcoma.

Mohammad Al-Enezi1, Alain Brassard

  • 1Service of Dermatology, McGill University, Montreal, Quebec, Canada.

Journal of Dermatological Case Reports
|September 3, 2011
PubMed
Summary
This summary is machine-generated.

Angiosarcoma, an aggressive vascular cancer, can rarely develop in chronic venous ulcers. Early recognition and management of chronic wounds are crucial for detecting life-threatening changes.

Keywords:
CD31Ulex europaeusangiosarcomapathologyskinulcer

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Venous Thrombosis Assay in a Mouse Model of Cancer
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Venous Thrombosis Assay in a Mouse Model of Cancer
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Area of Science:

  • Vascular oncology
  • Dermatopathology
  • Surgical oncology

Background:

  • Angiosarcoma is a rare, aggressive malignancy arising from endothelial cells.
  • Risk factors include lymphoedema and radiotherapy; association with chronic venous ulceration is infrequent.
  • Chronic wounds, particularly venous ulcers, represent a potential site for malignant transformation.

Observation:

  • A case report detailing a patient with a chronic venous ulcer who subsequently developed angiosarcoma.
  • The angiosarcoma manifested in the ulcerated leg.
  • Successful treatment and good patient outcome were achieved.

Findings:

  • Angiosarcoma can arise within the context of a chronic venous ulcer.
  • This presentation is rare but clinically significant.
  • Prompt diagnosis and intervention are key to managing this condition.

Implications:

  • Highlights the importance of vigilant monitoring of chronic wounds for any malignant changes.
  • Underscores that angiosarcoma, similar to squamous cell carcinoma (Marjolin's tumor), should be considered in the differential diagnosis of non-healing ulcers.
  • Emphasizes the need for a high index of suspicion in patients with chronic venous ulceration presenting with new or changing lesions.