术前影像学及临床均拟诊为左侧颞区或幕上脑膜瘤。手术所见　肿瘤完全位于左颞叶实质内 ,下缘靠近颞叶底面 ,瘤体呈灰紫色 ,表面光整 ,质地较硬 ,血供较丰富。完整切除肿瘤。病理诊断 :左颞叶转移性腺癌。术后行胸部Ｘ线及ＣＴ检查 ,发现右中叶占位 ,活检病理为腺癌。讨论　脑 Preoperative imaging and clinical diagnosis of the left temporal or supratentorial meningiomas. Surgical findings of the tumor completely located in the left temporal lobe parenchyma, lower edge near the bottom of the temporal lobe, the tumor was gray purple, the surface smooth, hard texture, blood supply is more abundant. Complete removal of the tumor. Pathological diagnosis: left temporal lobe metastatic adenocarcinoma. Postoperative chest X-ray and CT examination found that the right middle-leaf mass, biopsy pathology of adenocarcinoma. Discuss brain