側頭骨炎根治手術に因り初めて治癒した慢性錘體炎の1例

　從來所謂中耳根治手術後の耳漏に就て「止むを得ざうもの」として等閑に附されていた．所が此の膿汁の産生される原因を考慮すると唯耳管開口部を除外すれば，殘存せる慢性の骨炎から産生される事は想像に難くない．

　更に耳管皷室開口部に就ても，耳管よりの再感染，或は耳管の氈毛上皮が皷室に迄も延びて，粘液を産生する盃状細胞の爲に該部が濕潤すると謂う問題もあるが，更に大なる役割を爲しているのは耳管皷室開口部附近或は耳管夫自身の中に開口する錐體前蜂巣列の存在である。此の問題は前蜂窠列の病竈或は此より通する錐體尖病竈を上手に處置すれば耳管開口部は全例に於て上皮化すると謂う1事を以ても明であろう．

　Ishikawa and Niho say that, with radical operations on osteitis of temporal bones, a method of their own proposal, they were enabled to bring about an early cure to cases that failed to be cured previously after radical mastoidectmomi, es had been performed upon them. From microscopic examination of chips of bones obtained from various parts of the petrous pyramid at the time of operation the presence of chronic osteitis or osteomyelitis andor acute exasserbation of these processes are shown. Furthermore, it is also shown that, whenever there is occurrence of continuous and unceasing discharge from the mastoidectmized wound that cause failure to epithelization there is in deeper parts behind them all actual presence of chronic osteitis. and, when such source is completely oliminated the wound will heal in a very short time.