Vascular malformations are congenital anomalies characterised by abnormal clusters of blood vessels—including arteries, veins, capillaries, or lymphatic vessels—that are present at birth. These abnormalities don't resolve over time, unlike some other vascular conditions. Instead, they usually increase in size gradually as a person matures. They can occur in any part of the body, including the skin, muscles, bones, or internal organs. The size, location, and types of blood vessels involved in ...
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