腮腺基底細(xì)胞腺瘤的雙期增強CT特點
本文關(guān)鍵詞: 基底細(xì)胞腺瘤 CT表現(xiàn) CT強化模式 出處:《中國CT和MRI雜志》2016年04期 論文類型:期刊論文
【摘要】:目的探討腮腺基底細(xì)胞腺瘤的CT表現(xiàn)特點及CT值量化指標(biāo),以提高對該病的影像診斷水平。方法回顧性分析經(jīng)病理證實的22例腮腺基底細(xì)胞腺瘤的雙期增強CT的表現(xiàn),對腫瘤部位、數(shù)目、大小、形態(tài)、CT密度、強化模式及CT值量化指標(biāo)等進行分析。結(jié)果 22例腮腺基底細(xì)胞腺瘤病例均為單側(cè)單發(fā),16例位于腮腺淺葉,2例跨淺、深葉,4例位于腮腺深葉;腫瘤最大截面橫徑為0.5-5.5cm;大多呈橢圓形、類圓形軟組織腫塊,邊界清楚,17例(17/22)腫塊內(nèi)見囊變區(qū),其中1例(1/17)見鈣化灶。所有病例在雙期CT增強均有強化,動脈早期強化較明顯、CT值為(104.7±15.3)Hu,最大強化率為152.3%,動脈晚期(近動靜脈交界期)CT值為(118.7±13.8)Hu;基底細(xì)胞腺瘤至少有兩種強化模式:一是動脈早期明顯強化,動脈晚期持續(xù)強化;二是動脈早期顯著強化,動脈晚期強化幅度有所減退,同時與其相關(guān)病理進行比較分析,具有一定的特點。結(jié)論腮腺基底細(xì)胞腺瘤有一定特征性的CT表現(xiàn),結(jié)合病史、臨床表現(xiàn),有助于正確診斷。
[Abstract]:Objective to investigate the CT features and quantitative CT value of basal cell adenoma of parotid gland in order to improve the diagnostic level of the disease. Methods Twenty two phase enhanced CT findings of 22 cases with pathologically proved basal cell adenoma of parotid gland were analyzed retrospectively. The location, number, size, morphology, CT density, enhancement pattern and quantitative index of CT value of the tumor were analyzed. Results all 22 cases of basal cell adenoma of parotid gland were unilateral and 16 cases were located in the superficial lobe of parotid gland in 2 cases. The tumor was located in the deep parotid lobe in 4 cases; the maximum cross-sectional diameter of the tumor was 0.5-5.5 cm; most of the tumors were oval, round soft tissue masses, 17 / 22 with clear boundary. The cystic area was found in 17 / 22 of the masses, in which 1 / 17 (1 / 17) of the tumors were calcified. All the cases were enhanced on biphasic CT enhancement. The CT value of early arterial enhancement was 104.7 鹵15.3, the maximum enhancement rate was 152.3, and the CT value was 118.7 鹵13.8 Hu.There were at least two kinds of enhancement patterns in basilar cell adenoma: one was obvious enhancement in early stage of artery, and the other was continuous enhancement in late stage of artery. Second, the early stage of arterial enhancement was significantly enhanced, and the extent of late enhancement of the artery was decreased, and compared with its pathology, it had certain characteristics. Conclusion the basal cell adenoma of the parotid gland has some characteristic CT findings, combined with the history of the disease. Clinical manifestation is helpful to correct diagnosis.
【作者單位】: 上海交通大學(xué)醫(yī)學(xué)院附屬第三人民醫(yī)院醫(yī)學(xué)影像科;上海交通大學(xué)醫(yī)學(xué)院附屬第三人民醫(yī)院病理科;
【基金】:上海市寶山區(qū)科學(xué)技術(shù)委員會科學(xué)技術(shù)基金(標(biāo)號:14-E-4)
【分類號】:R739.8;R730.44
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