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目的分析卵泡膜瘤不同病理亚型的CT表现,提高卵泡膜瘤各亚型不同CT表现的认识,进一步提高卵泡膜瘤的CT诊断准确率。方法回顾性分析经手术及病理证实的45例卵泡膜瘤的CT表现及病理资料,所有病例均行CT平扫及增强扫描。结果 45例中卵泡膜细胞瘤15例,纤维卵泡膜瘤18例,卵泡膜纤维瘤12例;共54个病灶,其中单发40例,多发5例。肿瘤长径为2.2~18.0 cm(平均9.0 cm),其中卵泡膜细胞瘤、纤维卵泡膜瘤及卵泡膜纤维瘤的平均长径分别为10.0 cm、12.8 cm及5.2 cm,后者与前两者有显著统计学差异。25个病灶呈圆形或类圆形,29个病灶呈分叶状,后者多见于卵泡膜纤维瘤。卵泡膜细胞瘤、纤维卵泡膜瘤及卵泡膜纤维瘤平扫CT均值分别为21 HU、35 HU及48 HU。增强扫描54个病灶均轻度强化,其中52个病灶CT值增幅<10 HU。39例(86.7%)伴有腹腔积液,23例(51.1%)伴有胸腔积液;34例(75.6%)血清CA125升高,其中12例>500 U/ml;卵泡膜细胞瘤及纤维卵泡膜瘤患者胸腹腔积液量及CA125水平较高,并且与肿瘤大小呈正相关。结论卵泡膜瘤的大小、形态及密度与病理亚型相关;胸腹腔积液量及血清CA125水平与肿瘤大小呈正相关。
Objective To analyze the CT findings of different pathological subtypes of follicular meningioma and to improve the understanding of different CT manifestations in various subtypes of follicular meningioma and to further improve the accuracy of CT diagnosis of follicular meningioma. Methods The CT findings and pathological data of 45 cases of follicular meningioma confirmed by operation and pathology were retrospectively analyzed. All cases underwent CT scan and enhanced scan. Results In 45 cases, there were 15 cases of theca cell tumor, 18 cases of fibrosarcoma and 12 cases of follicular fibroma. There were 54 lesions, of which 40 cases were single and 5 cases were multiple. The major diameter of the tumors was 2.2 ~ 18.0 cm (average 9.0 cm). The average long diameter of the follicular cell tumor, the fibrosarcoma and the follicular fibroma were 10.0 cm, 12.8 cm and 5.2 cm, respectively. The latter was similar to the former two There are significant statistical differences. 25 lesions were round or round, 29 lesions were lobulated, the latter more common in follicular fibroids. The average CT scan of theca, fibrosarcoma and follicular fibroma were 21 HU, 35 HU and 48 HU, respectively. Forty-five lesions of the enhanced scan were mildly enhanced, of which CT value of 52 lesions increased by <10 HU. Thirty-nine (86.7%) patients had ascites, 23 (51.1%) had pleural effusion, and 34 (75.6%) patients had elevated serum CA125, 12 of whom were> 500 U / Patients with follicular meningitis pleural effusion and CA125 levels higher, and with a positive correlation between tumor size. Conclusions The size, shape and density of the follicular tumor are related to the pathological subtypes. The volume of pleural effusion and the level of serum CA125 are positively correlated with the tumor size.