[Functional microsurgery of the ethmoid sinus using an endonasal approach and preserving the middle turbinate]

The paper deals with the endonasal approach and the functional surgery of the ethmoidal region with respect to the middle concha. First of all, an anatomical survey of the ethmoid, pointing out the many useful topographic and vicinity particulars for endonasal management are displayed. His technique is detailed step by step, adding some modifications and variations introduced as a result of his own experience gained through 36 years of practice. The A stresses to the specialists the importance of being acquainted with the endonasal approach to the ethmoid sparing the middle turbinate, because it is very useful and gratifying.