1病例报告女性,50岁.因头痛、头晕、恶心1mo余就诊,查体无明显阳性体征.核磁共振(MRI)检查结果显示右侧侧脑室三角区见4.5cm×6.2cm大小不规则占位性病变,边界较清楚,呈稍长T1,T2信号,信号欠均匀,内见点片状低信号影,其周围有长T2脑脊液信号影围绕(图1A,B),增强扫描呈显著不均 1 case report Female, age 50, due to headache, dizziness, nausea, 1mo more than physical examination, physical examination showed no positive signs.MR examination showed that the right lateral ventricle triangle see 4.5cm × 6.2cm size irregular placeholder The lesion was clearer with a slightly longer T1 and T2 signal, the signal was less uniform, the intrathoracic patchy signal was seen, and there was a long T2 cerebrospinal fluid signal around it (Fig. 1A, B). The enhancement scan showed a significant non-uniformity