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目的初步探讨腮腺嗜酸细胞癌的MRI表现特点。方法回顾性分析经病理证实的4例腮腺嗜酸细胞癌患者的MRI表现。结果 1例位于浅叶,3例位于深叶;1例肿瘤呈结节状,边缘棘突样改变,3例形态不规则,呈分叶状,其中2例肿瘤边界不清,1例边界清楚;4例肿瘤T1WI上均呈低信号(2例信号均匀,2例信号不均匀)、T2WI信号不均匀(2例T2WI呈较低信号,2例抑脂T2WI呈稍高信号);2例肿瘤内见流空血管影;3例行MRI增强扫描,病灶呈轻中度强化。结论腮腺嗜酸细胞癌在MRI上有一定的表现特点,认识其表现有助于鉴别诊断。
Objective To investigate the MRI features of parotid eosinophilic carcinoma. Methods The MRI findings of 4 patients with pathologically confirmed parotid eosinophilic carcinoma were retrospectively analyzed. Results One case was located in the superficial lobe and the other three cases were located in the deep lobe. One case had a nodular shape and a marginal spinous process. Three cases were irregular in shape and lobulated. Two cases had unclear border and one had clear border ; 4 cases showed low signal on T1WI (2 cases of uniform signal, 2 cases of non-uniform signal), T2WI signal was uneven (2 cases of T2WI was lower signal, 2 cases of fat-suppressed T2WI was slightly higher signal); 2 cases of tumor See the flow of empty blood vessels; 3 cases of MRI enhanced scanning, the lesion was mild to moderate enhancement. Conclusion Parotid eosinophilic carcinoma has certain characteristics on MRI, and its performance is helpful to differential diagnosis.