卵巢颗粒细胞瘤的CT及PET/CT表现  

CT and PET/CT findings of ovarian granulosa cell tumor

作　　者：姬妮娜[1] 高剑波[1] 张智栩[1] 董军强[1] 

机构地区：[1]郑州大学第一附属医院放射科,河南郑州450052

出　　处：《实用放射学杂志》2012年第5期721-724,共4页Journal of Practical Radiology

摘　　要：目的 探讨卵巢颗粒细胞瘤（GCT）的CT及PET/CT表现特征.方法 回顾性分析经病理证实的5例GCT患者的影像资料,并与手术病理结果进行对照分析.结果 5例中4例行CT扫描,1例行PET/CT检查.3例为原发,呈单侧附件区边界清晰的类圆形分叶状囊实性（2例）或单房囊性肿块（1例）;2例为术后盆腹腔多处复发,多数病灶类似于原发者呈囊实性蜂窝状,最大灶均位于盆腔.平扫实性部分密度低于子宫肌层,增强呈中度或明显强化,但仍低于子宫肌层,可见患侧卵巢、子宫血管增粗;PET/CT检查囊壁放射性分布较浓密.5例均伴中至大量腹水,1例尚伴右侧大量胸水,均未见腹盆腔实质脏器转移及淋巴结肿大.结论 GCT的CT表现具有一定的特征,对其诊断具有指导作用;其PET/CT表现特征尚待更多病例的总结.Objective To explore the CT and PET/CT features of ovarian granulosa ceil tumor （GCT）. Methods Imaging data of 5 cases of GCT were retrospectively analyzed and compared with the findings of operation and pathology. Results 4 patients were examined with CT, 1 case underwent PET/CT. There were primary tumors in 3 cases and recurrent ones in 2 cases. The primary tumors in 3 cases were all involving unilateral ovarian,the lesions were ovoid or lobulated and appeared as well defined multilocular cystic and solid （n=2） or monolocular cystic with thick wall （n= 1 ） masses. The lesions in 9 recurrent cases showed multiple honeycomb-like abdominal masses which were similar to the primary ones. The solid parts of the neoplasm were moderately or significant ly enhanced, and the density was lower than that of the myometrial on both plain and contrast enhanced CT （CECT） scan. Dilatation of the ovarian and uterine vessels was also observed on CECT scan. On PET/CT scan, the cystic walls of tumor accumulated much radioactivity. All the cases were associated with moderate to massive ascites and lease with pleural fluid. No obvious tumor was found in abdominal parenchymal organs. Conclusion CT can demonstrate specific features of GCT, which is helpful to the diagno sis. More cases are needed to sum up the PET/CT characteristics of this tumor.

关 键 词：卵巢 颗粒细胞瘤 体层摄影术 X线计算机 氟代脱氧葡萄糖 正电子发射计算机体层成像 

分 类 号：R737.31[医药卫生—肿瘤] R814.42[医药卫生—临床医学]