卵巢巨型囊性病变的CT诊断(附13例分析)

目的：评价卵巢巨型囊性病变的CT定位、定性诊断价值。方法：回顾性分析经手术、病理证实的卵巢巨型囊性病变13例，其中恶性囊性病变6例、良性囊性病变7例。结果：13例卵巢巨型囊性病变的良恶性CT表现和定位与文献报道有一定的差距，其中4例定位错误，3例良性病变误诊为恶性。2例恶性病变误诊为良性。定位、定性的准确率明显低于文献报道。文献报道囊壁内外结节是诊断良恶性的标志之一，但本文3例良性病变的囊壁及间隔出现结节，1例无结节囊性病变术后病理证实为恶性。结论：巨型囊性病变CT定位可出现误差。结合B超检查可提高定位诊断，当囊壁出现结节时，观察囊壁结节的多少是诊断良恶性的标志之一。

CT diagnosis of ovarian gigantic cystic lesions(analysis of 13 cases)

Objective:To evaluate the CT diagnostic efficacy for localization and characterization of ovarian gigantic cystic lesions.Methods:CT findings of 13 patients with ovarian gigantic cystic lesions proved by surgery and pathology were studied retrospectively analyzed. There were 6 cases with malignant cystic lesions, 7 cases with beningn cystic lesions.Results:There is some difference between the CT manifestation and localization of ovarian gigantic cystic lesions and documentary report. In this study, 4 cases appears localizational error. 3 cases with benign lesions was misdiagnosed malignant, 2 cases with malignant lesions was misdiagnosed benign. The diagnosing rate about localization and characterization is lower than reported obviously. The nodule which in or outside the cystic wall is one of the differential signs between benign and malignant lesions. But in this study, it appears nodule in the cystic wall and septa, in the 3 cases benign lesions, 1 case with non-nodular cystic lesions was confirmed malignant after operation.Conclusion:The CT fixed position of gigantic cystic lesions can appear error. When combined with B-ultrasound, the diagnosing rate can be improved. When the nodule appears in the cystic wall, the number of nodule is one of differential signs between benign and malignant lesions.