Up to this time, it has been said, that the otogenous suppurative meningitis were infected most through labyrinth, and that the infections through labyrinth were more than half of total cases.
Researched histologically about 20 in 88 cases, and obtained next results.
The otogenous suppurative meningitis is infected most through the cell of petrous apex, and rare through labyrinth. Even in cases, which show clinically labyrinthitis, the infection from labyrinth to meninges is histologically few.