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目的 :探讨原发性腹膜后肿瘤的CT诊断和鉴别诊断。方法 :对 19例CT检查和病理证实的原发性腹膜后肿瘤进行分析。结果 :恶性 15例 ,良性 4例。CT表现的共同点为 :( 1)肿瘤较大 ;( 2 )密度多不均匀 ;( 3 )除囊性病变外 ,增强扫描可见不同程度的强化 ;( 4 )良性肿瘤引起邻近组织受压、移位 ;恶性腹膜后肿瘤多有与周围组织粘连或侵犯的表现。结论 :CT对原发性腹膜后肿瘤的定位和定性诊断价值较高 ,多种影像检查方法相结合有助于本病的鉴别诊断 ,但病理类型的确定有赖于穿刺活检和术后病理检查。
Objective: To investigate the CT diagnosis and differential diagnosis of primary retroperitoneal tumor. Methods: Nineteen cases of primary retroperitoneal tumor confirmed by CT examination and pathology were analyzed. Results: 15 cases were malignant and 4 cases were benign. Common features of CT manifestations are: (1) large tumors; (2) uneven density; (3) in addition to cystic lesions, enhanced scanning shows varying degrees of enhancement; (4) benign tumors caused by compression of adjacent tissues, Shift; malignant retroperitoneal tumor with more than the surrounding tissue adhesion or violations of the performance. Conclusion: CT has a high value in the localization and qualitative diagnosis of primary retroperitoneal tumors. The combination of multiple imaging methods can be helpful in the differential diagnosis of this disease. However, the determination of pathological type depends on the biopsy and postoperative pathological examination.