Messerklinger W
Arch Otorhinolaryngol. 1979;222(1):11-22. doi: 10.1007/BF00456333.
The infundibulum ethmoidale is a cleft-like space situated like a funnel before the maxillary ostium. In this cleft inflammations occur very often. From here they may spread to the paranasal sinuses of the first series (frontal and maxillary sinus, anterior ethmoidal cells), especially to the antrum, and may cause recurrent or chronic inflammations. The walls of the infundibulum may be inspected endoscopically from the middle and inferior meatus, and also from the antrum. Sometimes a direct view in this cleft-like space may be obtained. On this way any inflammations of the infundibulum can be diagnosed exactly and treated endoscopically. This procedure leads not only to healing of the infundibulum, but also of the adjacent paranasal sinuses of the first series.
筛漏斗是位于上颌窦口前方呈漏斗状的裂隙样间隙。该裂隙处极易发生炎症。炎症可由此蔓延至第一组鼻窦（额窦、上颌窦、前组筛窦），尤其是上颌窦，并可引发反复发作或慢性炎症。可通过中鼻道、下鼻道以及上颌窦对筛漏斗壁进行内镜检查。有时可直接观察到该裂隙样间隙。通过这种方式，能够准确诊断筛漏斗的任何炎症，并进行内镜治疗。此操作不仅能使筛漏斗愈合，还能使相邻的第一组鼻窦愈合。
