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后腹膜恶性间皮瘤临床上较少见，容易误诊，本文４ 例，临床表现依次为腹痛、腹部包块、腹水、消瘦、发烧、肠梗阻等。 Ｂ超为首选检查方法，其次为 Ｃ Ｔ。大体形态上肿瘤可分为局限型和弥漫型。组织学上分为上皮样型、纤维型及混合型，以上皮样型为主。肿瘤多呈弥漫性生长，应覆以腹膜表面，可侵入脏器，最后诊断取决于病理结果。治疗上以外科手术为主，局限性恶性间皮瘤强调完整切除，预后较好；弥漫性手术切除率低，预后差；术后行放疗和化疗等综合治疗有助于提高生存率。
Retroperitoneal malignant mesothelioma is rare in clinical practice and is easily misdiagnosed. In this article, 4 cases were presented with abdominal pain, abdominal mass, ascites, emaciation, fever, and intestinal obstruction. B ultrasound is the preferred method of inspection, followed by C T. In general, tumors can be divided into localized and diffuse types. Histologically divided into epithelioid type, fiber type and mixed type, the main skin type. Most of the tumors show diffuse growth. They should be covered with the peritoneal surface and can invade the organs. The final diagnosis depends on pathological results. The treatment is mainly surgical. Local malignant mesothelioma emphasizes complete resection and has a good prognosis. Diffuse surgical resection has a low rate and poor prognosis. Postoperative comprehensive treatment such as radiotherapy and chemotherapy can help improve survival.