To the editors:


In a close review of several articles and books that refer to the ELS classification of endoscopy cordectomy, we found that there is a recurring confusion concerning the Vc and Vd type classification (Table 1).

Table 1 Reflects the inconsistencies of the above mentioned classification

This could come from the original source, the first classification published in the Europe Archives of Otorhinolaryngology in 2000, where the main text and the abstract had switched Vc by Vd. Seven years after this, in the main text of the proposal for revision of the classification published in 2007, type Vc encompasses the subglottis and type Vd includes the ventricule, as in the abstract of article of 2000.

Kind regards.