磁共振诊断皮肤鳞状细胞癌的应用价值

目的探讨磁共振诊断皮肤鱗状细胞癌(cSCC)的价值以及cSCC的磁共振图像特点。方法回顾性收集经术后病理确诊为cSCC的患者32例,由3名不同职称的影像学诊断医师共同分析病灶的部位、形态、大小、边界、各序列的信号及增强后的强化程度,并与手术情况、术后病理进行对照分析。结果32例cSCC均为单发,位于真皮和皮下层,病灶呈隆起及浸润式生长。T_(1)WI等信号32例,T_(2)WI稍高信号30例,高信号2例,DWI呈稍高信号12例,增强后有不同程度强化,其中边缘明显强化多见,2例有类似“脑膜尾”征,所有病灶边界均不清,3例累及颅骨和肌肉组织。结论术前磁共振对cSCC病灶的大小、侵犯范围及深度进行评估,有助于临床治疗方案的制定。

Objective To explore the value of magnetic resonance imaging(MRI)in the diagnosis of cutaneous squamous cell carcinoma(cSCC),and the characteristics of MRI images of this disease.Methods The MRI images of 32 patients with cSCC confirmed by postoperative pathology were retrospectively analyzed.The location,shape,size,boundary,signal of each sequence and the degree of enhancement of the lesion were analyzed joindy by three imaging diagnostic physicians with different professional rides,and the comparative analysis was conducted with the operation situation and postoperative pathology.Results All 32 cases were single,located in the dermis and subcutaneous layer,and the lesions showed elevated and infiltrative growth.32 lesions were isointense on T_(1)WI.30 cases were slightly hyperintense on T_(2)WI,2 cases were hyperintense.And slightly hyperintense on DWI in 12 cases,there were different degrees of enhancement after enhancement.Among them,obvious edge enhancement was common.2 cases had similar"meningeal tail"signs,all cases had unclear boundaries,and 3 cases involve skull and muscle tissue.Conclusion Preoperarive MRI evaluation of cSCC size,scope and depth of invasion has certain value for clinical treatment.