Hepatic hemangioma

Most hepatomas are cavernous hemangiomas, which are common benign tumors of the liver that can occur at any age, but often appear in adults, and more often in women. Hepatic hemangiomas are the most common benign tumors in the liver. Most cases can be diagnosed before surgery, the majority are asymptomatic, and a few have liver discomfort due to large tumors. If there is an increasing trend, or if it is located under the liver capsule, there may be major bleeding, which is life-threatening and should be treated as soon as possible. Tumors are found in any part of the liver, often under the capsule, and they are usually single (about 10% are multiple). The diameter of the tumor is less than 4 cm, but it can be as small as a few mm and as large as 30 cm. The surface of the tumor was dark red or purple with an envelope and a sponge-like cut surface. Sometimes thrombosis and scarring are seen inside the hemangioma, with occasional calcification. Under the microscope, a hemangioma is a network of interstitial spaces formed by vascular ducts with flat endothelial cells of different sizes on the inner wall, which contains red blood cells and sometimes fresh organic blood clots. The tumor is clearly delimited from the surrounding tissue.