How Are Vascular Malformations Formed?

Vascular malformations are composed of multiple vascular channels covered by endothelial cells, commonly including types such as microvenous malformations, venous malformations, arteriovenous malformations, lymphatic malformations, and mixed vascular malformations. Magnetic resonance imaging can assist in diagnosis, and treatment plans vary depending on the differences in arterial and venous blood supply.
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How are vascular tumors classified?

How are vascular tumors classified? Professor Dong, my child developed a 2.5*2 cm vascular tumor on the right scapula at about two weeks old, which was initially flat on the skin. At 42 days, a large swelling the size of an egg appeared beneath the skin, with the surface vascular tumor protruding above the skin. Now, three and a half months later, the vascular tumor is slowly growing, but not very quickly.
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