卵巢冠囊肿的 CT 诊断

摘要

目的：探讨卵巢冠囊肿的 CT 表现及误诊原因,提高诊断准确性。方法回顾性分析75例经手术及病理证实的卵巢冠囊肿的CT 检查资料。结果75例患者共79个病灶,源自卵巢冠48例(51个),输卵管系膜27例(28个)；浆液性单纯囊肿77个,浆液性囊腺瘤2个；右侧附件区38个,左侧附件区36个,子宫前上方3个,子宫直肠凹1个,右侧髂窝1个；囊肿大小10 mm×13 mm~174 mm×227 mm；单囊75个,双囊4个,卵圆形34个,欠规则形25个,圆形17个,葫芦状3个；79个病灶均界清、壁菲薄,无壁结节,囊液密度均匀,CT 值0~31 HU；增强扫描68个囊肿边缘见弧形“输卵管明显强化征”；76个病灶同侧卵巢可见；19个病灶见“抱球”征。结论同侧卵巢显示、病灶边缘弧线样“输卵管明显强化征”及“抱球”征是卵巢冠囊肿特征性的 CT 表现,CT 对卵巢冠囊肿的诊断有重要价值。%Objective To investigate the CT performances and causes of misdiagnosis of parovarian cyst,to improve its diagnostic accuracy.Methods CT data of 75 patients with surgically and pathologically confirmed parovarian cyst were analyzed retrospectively. Results Among the 75 patients,there were 79 cysts,in which 48 patients (51 cysts)originated from the epoophoron and 27 patients (28 cysts) from the mesosalpinx.77 were simple serous cysts and 2 serous cystadenomas.38 were located in the right ovarian adnexa,36 in the left ovarian adnexa,3 in the anterosuperior uterus,1 in the rectouterine pouch and 1 in the right iliac fossa.The size of the cysts ranged from 10 mm × 13 mm to 174 mm × 227 mm.75 were single cysts and 4 double cysts,34 presented as ovoid cysts,25 as irregular cysts, 17 as round cysts and 3 as gourd-shaped cysts.All the 79 cysts showed clear boundaries,thin walls,non-mural nodules,cystic fluid with a homogeneous densitywith CT value of 0-31 HU.Enhanced scanning revealed curved “obvious enhancement of the fallopian tube”at the edge of 68 cysts.In addition,the ipsilateral ovary could be detected in 76 cysts.“Holding ball”was found in 1 9 cysts.Conclusion Indication in ipsilateral ovary,curved “obvious enhancement of the fallopian tube”at the edge of cysts and “holding ball”are distinctive CT performances of parovarian cysts.CT has an important diagnostic value in parovarian cyst.