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皮肤血管瘤是胚胎血管组织的过度发育的一种错构瘤(Hamartoma),由残余的胚胎成血管细胞(Angioblastic cells)发展而成。胚胎早期出现血管内皮细胞索和岛,以后形成毛细血管腔,再彼此穿通、连
Dermal hemangioma is a hamartoma of overdevelopment of embryonic vascular tissue, developed from residual embryonic hemangioblasts (Angioblastic cells). Embryonic vessels and islands of vascular endothelial cells appear early in the embryo and later form capillaries and then pass through each other.