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原发性腹膜后肿瘤(Primary retroperitoreal tumors.PRT),指起源于腹膜后潜在腔隙的肿瘤。主要来源于腹膜后间隙的脂肪、疏松结缔组织、筋膜肌肉、血管、神经、淋巴组织以及胚胎残留组织,但不包括胰、肾、肾上腺等实质性脏器和大血管的肿瘤。PRT发病率为2.3/10万,约占全部恶性
Primary retroperitoreal tumors. PRT refers to tumors that originate in the retroperitoneal lacuna. Mainly from the retroperitoneal space fat, loose connective tissue, fascia muscle, blood vessels, nerves, lymphoid tissue and embryonic tissue, but does not include the pancreas, kidney, adrenal and other substantial organs and large blood vessels of the tumor. The incidence of PRT 2.3 / 100,000, accounting for about all malignant