Is the Cribriform Plate an Effective Border?

Introduction: The authors have studied the anatomy of the cribriform plate for a long time and they will refer to their own studies of the problems of the cribriform plate as an effective border of tumors. They will discuss this border in relation to any tumor classification in correlation with the appropriate anatomical study. Material and Methods: Macroscopic and microscopic study of the cribriform plate in different histological techniques and specimens. Correlation between surgery and different techniques and anatomical circumstances. Conclusions: After anatomical study, the authors will discuss operative techniques in the region of the cribriform plate and its resection: is it possible to resect the cribriform plate without opening the dural sheet?