上皮源性卵巢肿瘤的CT表现分析

CT findings of epithelial origin ovarian carcinoma

目的探讨上皮源性卵巢肿瘤的CT表现。方法 82例上皮源性卵巢肿瘤患者中高分化19例,中分化21例,低分化42例。通过CT图像对双侧卵巢受累,肿瘤的性质,淋巴结、邻近器官的侵犯,腹膜种植,腹水,远处转移等资料,对囊性肿瘤的壁、分隔、乳头状突起和实性部分进行分析。结果①与高分化癌(5%)相比,低分化癌(47%)和中分化癌(45%)更容易累及双侧卵巢(P<0.05);②实性为主或实性肿瘤更多见于低分化和中分化癌(P<0.05);③在囊性、囊性为主及混合型肿瘤,分隔厚度>3 mm、有乳头状突起、实性部分发生坏死多见于低分化肿瘤(P<0.05);④淋巴结转移,临近器官侵犯,肿瘤种植和大量腹水多见于低分化肿瘤。结论上皮源性卵巢肿瘤根据其组织分化程度在CT上有不同的发现。

Objective To evaluate the CT findings of epithelial origin ovarian carcinoma. Methods 82 patients with ovarian carcinoma were enrolled in this study, 19 well differentiated, 21 moderately differentiated and 42 poorly differentiated carcinomas. The CT images were retrospectively studied with according to bilateral ovarian involvement, the tumor＇s nature, lymphaden and adjacent organ invasion, peritoneal tumor seeding, ascites and distant metastasis. In cystic and mixed tumors, the tumor wall, septa, papillary projec- tion and the solid portion necrosis were assessed. Results Bilateral ovarian involvement was more common in the poorly （47%） and moderately （45 % ） differentiated carcinomas than that in the well differentiated carcinomas （5 % ） （ P 〈 0.05 ）. The frequency of a pre- dominantly solid or solid nature was more in the moderately and poorly differentiated carcinomas than well differentiated carcinomas （ P 〈 0.05 ）. Tumors with a cystic, predominantly cystic or mixed nature, septa was greater than 3 mm, papillary projection and. necrosis in the solid portion were more common in the poorly differentiated carcinoma than in the moderately and well differentiated carcinomas （P 〈 0.05 ）. Lymph node metastasis, organ invasion, tumor seeding and a large amount of ascites were more common in the poorly differentiated carcinomas than in the moderately and well differentiated carcinomas （P 〈 0.05）. Conclusion Ovarian carcinoma shows different CT findings according to the degree of histological differentiation.