Primary retroperitoneal tumor

Primary retroperitoneal tumor refers to a variety of soft tissue tumors from the retroperitoneal space, but does not include tumors of the retroperitoneal organs, which can be divided into benign and malignant types. Malignant tumors are reported in about 80% of foreign countries and 56% in China. Retroperitoneal tumors have swelling growth, have a complete envelope, are not easy to metastasize, and are prone to local recurrence. Because the tumor site is deep, and there is some room for expansion, there is no symptoms at the beginning of the onset, so early diagnosis is difficult. As the tumor grows, oppresses or invades the surrounding organs and tissues, symptoms appear, which adds to the complete treatment Out of difficulty.