图示：喉头水肿
炎症发生的喉头水肿对机体的影响较大，引起气道狭窄，甚至威胁生命。水肿对机体的影响与发生部位密切相关。
This example of edema with inflammation is not trivial at all: there is marked laryngeal edema such that the airway is narrowed. This is life-threatening. Thus, fluid collections can be serious depending upon their location.