The vena emissaria mastoidea and its possible connection to the cells of the mastoid apophysis

: The possibility of connections between Canalis mastoideus and Cellulae mastoideae is checked by means of probation in 30 human skulls and 10 selected skulls (out of this 30) by x-ray investigation. In 4 cases such connection were seen. It is evident that the migration of inflammations along such connections is possible.