This circumscribed reddish - yellow firm neoplasm beneath the dura next to the falx is a meningioma . the superior parasagittal location is quite common 边界清晰、红黄质韧的脑膜瘤，位于硬脑膜下，临近大脑镰。发生于正中线旁且偏上的部位是相当普通的。
2.
A detailed us examination using a 3 . 5 - mhz transabdominal probe demonstrated a fused single ventricle , a fused thalami , a cleft lip and palate , and the absence of falx cerebri in her fetus 腹部超音波显示胎儿有单一脑室，融合的视丘及缺少大脑帘并唇裂及颚裂畸形。
