[摘要] 目的 探討韌帶樣瘤的MRI表現,提高MRI對該病的診斷符水平。 方法 回顧分析6例經手術病理證實的韌帶樣瘤的MRI表現。 結果 6例病理證實的病例中,浸潤性生長3例,膨脹性生長3例,MRI信號混雜信號,T1WI以等信號為主,接近鄰近肌肉信號,T2WI以略高信號為主,壓脂序列呈高信號,所有病例中可見片狀或索條狀低信號,增強掃描腫瘤不均勻強化。 結論 MRI檢查顯示韌帶樣瘤的形態、信號、強化方式等方面有一定的特征性,具有鑒別診斷價值。
[關鍵詞] 韌帶樣纖維瘤;磁共振成像
[中圖分類號] R730.4 [文獻標識碼] B [文章編號] 2095-0616(2012)21-107-02
Imaging manifestations of desmoid-type fibromatosis
YUAN Lili
Department of Image,the Second Affiliated Hospital of Southeast University, Nanjing 210003, China
[Abstract] Objective To explore the clinical and MR imaging features of desmoid-type fibromatosis in order to achieve more information about the disease and to improve the diagnosis. Methods The clinical and MRI imaging data of 6 patients' desmoid-type fibromatosis confirmed by pathology were retrospectively analyzed. Results 6 cases of histologically confirmed cases, invasive growth in 3 cases, expansive growth in 3 cases, on T1 weighted images, 4 tumors showed homogeneous signal isointensity relative to muscle, or heterogeneous signal intensity; on T2-weighted images showed hyper intensity. In all lesions, acord-like or patch-like low signal could befound. All lesions showed heterogeneous enhancement. Conclusion MRI examination revealed a desmoid tumor morphology, signal, enhanced mode has certain characteristics, has the value of differential diagnosis.
[Key words] Desmoid-type fibromatosis; Magnetic resonance imaging
韌帶樣瘤又稱侵襲性纖維瘤病、硬纖維瘤和帶狀纖維瘤等,生物學行為屬低度惡性腫瘤,是一種非常少見的疾病[1]。本研究主要討論MRI影像檢查在韌帶樣瘤診斷上的價值,收集2008年8月~2012年7月6例經過手術病理證實的韌帶樣瘤病例,術前MRI檢查圖像進行回顧性分析,重點探討其MRI表現特征,并結合臨床病理資料進行對照分析,以提高對韌帶樣瘤的影像認識及診斷水平。
1 資料與方法
1.1 一般資料
6例經手術病理證實為韌帶樣瘤患者,年齡31~41歲,平均(36.0±4.5)歲,女4例,男2例。均無手術病史。術后2例復發。臨床表現為患者發現相應部位腫塊,或局部酸痛不適,并進行性加重,觸診病灶活動度差。
1.2 檢查儀器和方法
采用Philips Medical Systems 1.5T磁共振掃描儀。常規掃描包括T1WI、T2WI、T2WISPAIR序列,掃描參數:T1WI(TR/TE,675 ms/Min full),T2WI(TR/TE,4 000/80 ms);增強掃描T1WI脂肪抑制序列;層厚4.0~6.0 mm,間隔1.0 mm,所有病例均行平掃及增強掃描,對比劑為釓噴替酸葡甲胺(Gd-DTPA),使用高壓注射器經肘前靜脈團注,流速為2.0 mL/s,劑量為0.1 mmol/kg。……