鱼类及一些有尾两栖类在漏斗基部的两侧有一对下叶，另外在脑下垂体的后方还有单个的血管囊。其结构作用目前还不清楚，有人认为是测水深的压力感受器。深海鱼类大部分都具有此结构。
有时在x光部门，较短的堵塞可能被球囊(血管成形术)打开。
Sometimes short blockages can be stretched open with a balloon (angioplasty) in the X-ray department.
绒毛膜尿囊由融合的绒毛膜和尿囊组成的富含血管的胎膜组织，存在于爬行类动物和鸟类的蛋壳附近，并且构成大多数哺乳动物的胎盘。
The highly vascular fetal membrane that consists of the fused chorion and allantois found adjacent to the eggshell in reptiles and birds and constituting the placenta in most mammals.
就作者所知，这是首次描述对颈椎血管瘤以气球囊椎体后凸成形进行治疗。
To the authors' knowledge, this is the first description of cervical hemangioma treated by balloon kyphoplasty.
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