Congenital arteriovenous fistula
Congenital arteriovenous fistula
Congenital arteriovenous fistula refers to the abnormal formation of an artery and a vein during embryonic development, creating an abnormal connection between them.
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Congenital arteriovenous fistula
Congenital arteriovenous fistula refers to the abnormal formation of an artery and a vein during embryonic development, creating an abnormal connection between them.
View detailsVenous embolism
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View detailsTraumatic arteriovenous fistula
Traumatic arteriovenous fistula refers to an abnormal communication between an artery and a vein caused by trauma. It is often caused by penetrating injuries, such as stab wounds, gunshot wounds, and metal fragment injuries. It can also be caused by iatrogenic factors, such as arterial and venous punctures. The injury simultaneously affects adjacent arteries and veins, forming a direct communication between the artery and the vein.
View detailsPrimary lower extremity deep venous valve insufficiency
Deep venous valves prevent blood reflux. Primary lower extremity deep venous valve insufficiency refers to the incompetence of deep venous valves in the lower extremities without deep vein thrombosis, leading to deep venous blood reflux and corresponding clinical manifestations.
View detailsLimb vascular injury
Limb vascular injury refers to severe trauma to the blood vessels of the limbs, leading to a disruption of their integrity. The three most frequently injured arteries are the brachial artery, femoral artery, and popliteal artery, with most injuries occurring on one side of the body. The primary symptom of this condition is bleeding, which can lead to impaired blood supply to distal vessels, hypotension, paresthesia, and even organ failure and shock.
View detailsHereditary hemorrhagic telangiectasia
Hereditary hemorrhagic telangiectasia (HHT), also known as Rendu-Osler-Weber syndrome, is a genetic disorder caused by defective genes that lead to abnormal blood vessel development. This results in telangiectasias and arteriovenous malformations (AVMs) in internal organs (such as the lungs and liver), making individuals prone to spontaneous bleeding or bleeding from minor trauma. This disease commonly affects young and middle-aged adults. The main symptoms include skin telangiectasias and recurrent bleeding from mucous membranes and the gastrointestinal tract.
View detailsLymphangioma
Lymphangioma is a relatively rare benign tumor of the lymphatic system that can occur in any part of the body containing lymphatic vessels. Lymphangiomas can be congenital or acquired. The most common type is congenital lymphangioma, which occurs in infants and young children. Acquired lymphangioma in adults is clinically rare.
View detailsDeep vein thrombosis
Deep vein thrombosis is a condition characterized by impaired venous return due to abnormal blood clotting within the deep veins. It commonly occurs in individuals who are bedridden for extended periods, have immobile limbs, or have undergone major surgery or trauma. It frequently affects the lower extremities, and a detached thrombus can lead to pulmonary embolism.
View detailsSimple varicose veins of the lower extremities
Simple lower extremity varicose veins are a common disease in vascular surgery, with a high incidence in the general population, particularly among women and the elderly. The affected vessels include the great saphenous vein, small saphenous vein, and their branches. The diseased veins appear elongated, dilated, and tortuous. In cases with a longer disease course, increased skin pigmentation in the lower extremities, thrombophlebitis, and even skin ulcers may occur.
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