Cervical hemangioma

Haemangioma is a congenital disease that develops from mesoderm residual tissue. Active endothelial germ invades into adjacent tissues to form endothelial splines. After being tubed, it connects with the remaining blood vessels to form hemangiomas. Tumors The internal blood vessels are self-contained and are not connected to the surrounding blood vessels. Hemangiomas are made up of a large number of proliferating blood vessels. In the early stage of the embryo, the primitive vasculature is a tube made of only endothelial cells. They form a dense network in the interstitial space. Later, as the organs develop, the primitive veins The network gradually differentiates into many vascular plexuses and lymphatic plexuses that are connected to the organ.

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