Hemangioma is a common benign tumor, which can grow in any part of the body, but most of it grows in skin and subcutaneous tissue, so it is easy to be found. This kind of tumor can be light or heavy, ranging from the size of a needle (such as capillary hemangioma) to almost the whole face or hand. Hemangioma is a kind of vascular tumor. Vascular development from mesoderm leaves. In the early stage of embryonic development, vascular endothelial cell bands or cell islands appear, which gradually develop into capillary cavities and connect with each other to form various blood vessels, such as blood vessels. If the embryo develops abnormally, these primitive cells are scattered and remain in the abnormal parts and continue to develop into hemangioma.
The diagnosis of cutaneous hemangioma can be made by naked eye observation, but the diagnosis of subcutaneous hemangioma is difficult, and its nature and scope need to be determined by imaging examination (such as angiography and CT). Correct diagnosis is very important to choose the treatment opportunity and method. Hemangioma is the most common vascular malformation, also known as birthmark. It is a benign tumor, which originates from the residual vascular cells in the embryo and is formed by the proliferation of vascular cells in the embryo.
More common at birth or shortly after birth. The incidence rate is about 4%- 10%, which is usually more common in girls, about 3-5 times that of boys. The incidence of premature low birth weight infants (birth weight less than 1kg) and twins is higher. Hemangiomas can occur in all parts of the body. Hemangiomas in oral and maxillofacial region account for 60% of all hemangiomas, followed by trunk (25%) and limbs (15%). Most of them occur in facial skin, subcutaneous tissue and oral mucosa, such as tongue, lips and floor of mouth, and a few occur in jaw or deep tissue.
The appearance of hemangioma depends on many factors, including whether it grows on the surface or deep, whether it is proliferative, stable or degenerative, whether it is found at birth or after birth. Hemangiomas on the skin surface are called superficial hemangiomas, which are usually bright red and resemble strawberries, so this kind of hemangioma was previously called "strawberry hemangioma". Subcutaneous hemangioma is called deep hemangioma, which is bruised or light blue, and some of them are not visible at all. This type of hemangioma is usually found when the baby is 2-4 months old. 60% ~ 70% of hemangioma may subside before the age of 8. If you find hemangioma on the skin surface, you can go to a regular hospital for plastic surgery or vascular surgery.