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本文回顾性分析了39例孤立性脑转移瘤的MR表现及其病理基础。作者认为从MR表现无法确定每个转移瘤的病理组织学类型。但作者提出两点参考征象:1.实质性结节状(Φ《3cm)病灶,T_1加权像等信号,T_2加权像等、低信号.均匀强化,“呈现小结节大水肿”征象,首先考虑转移性肿瘤,且以腺癌可能性最大。2.本组资料转移性鳞癌MRI均显示有坏死,囊变征象,转移性腺癌相对少见。
This article retrospectively analyzed 39 cases of solitary brain metastases MR manifestations and pathology. The authors concluded that the histopathological type of each metastasis can not be determined from MR findings. However, the authors make two reference signs: 1. Substantial nodular (Φ 3 cm) lesions, T 1 -weighted images, T 2 -weighted images, low signal, homogeneously enhanced, showing signs of small nodules, Metastatic tumors are considered, and adenocarcinoma is the most likely. 2. This group of data on metastatic squamous cell carcinoma showed necrosis, cystic signs, metastatic adenocarcinoma is relatively rare.