卵巢甲状腺肿和卵巢透明细胞癌的CT诊断和鉴别

Diagnosis and differentiation of struma ovarii and ovarian clear cell carcinoma by CT scanning

目的探讨卵巢甲状腺肿(SO)和卵巢透明细胞癌(OCCC)的CT诊断及鉴别。方法回顾性分析经手术病理证实的12例SO和14例OCCC患者临床特征及CT表现,分析两组CT值。结果 OCCC组发病年龄大于SO组[(57.50±7.17)岁vs.(43.92±10.38)岁](P<0.01),SO组分隔和平扫高密度囊腔例数多于OCCC组(11例vs.2例和10例vs.0例)(P<0.01)。SO组增强后动脉期和实质期CT值均高于OCCC组(68.33±5.48vs.50.00±7.72和96.11±7.04vs.62.93±10.21)(P<0.01),OCCC组坏死、囊变例数多于SO组(9例vs.1例)(P<0.05)。结论 SO和OCCC在CT上均可表现为边界清晰的囊实性肿块,但是两者在分隔、平扫高密度囊腔、实性部分的强化程度以及囊变、坏死方面存在差异。

Objective To investigate the value of CT in the diagnosis and differentiation of struma ovarii（SO）and ovarian clear cell carcinoma（OCCC）.Methods Clinical characteristics and CT features of 12 patients with SO and 14 patients with OCCC diagnosed surgically and pathologically were retrospectively analyzed.CT values of two groups were analyzed.Results The age of onset in group OCCC was older than that in group SO[（57.50±7.17）years vs.（43.92±10.38）years]（P〈0.01）.The numbers of cases with separation and high attenuation lesion of intracystic on plain scan in group SO were more than those in group OCCC（11cases vs.2cases and 10 cases vs.0case）（P〈0.01）.The CT values of enhanced degree on arterial and venous phase in group SO were higher than those in group OCCC（68.33±5.48 vs.50.00±7.72 and 96.11±7.04 vs.62.93±10.21）（P〈0.01）,but the number of cases with necrosis or cystic change in group OCCC was more than that in group SO（9cases vs.1case）（P〈0.05）.Conclusion The cystic-solid masses with smooth margin of SO and OCCC is showed on CT imaging in common,but the differences exist between SO and OCCC in the separation,high density cavity on plain scan,degree of solid part enhancement,cystis degeneration and necrosis.