A detailed US examination using a3.5- 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。