慢性中耳炎例の乳様蜂〓上皮細胞の食機能について

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概要

• 論文の詳細を見る

• It was found by T. Goto and his co-worker that epithelial cells of the mastoid had phagocytosis in experimental studies.But, in surgical specimen it is very rare to find such histological changes.In a case of chronic otitis media, author could found by chance the sights of phagocytosis in the epithelium of the mastoid cells.A patient, male of 30 years old, visited Nagasaki University, because of headache, otorrhoea and hard of hearing.Tympanoplasty was performed and the author removed a great part of mastoid cells to observe the mucous membrane. But, some of air cells were left in the mastoid because the author thought that these few mastoid cells were no obstacle, if obliteration of the mastoid cavity was done.However, perichondritis occured post-operatively and external auditory meatus became narrow. The patient was reoperated and at that time, the author opened the mastoid cavity because it was a good chance to observe the postoperative condition of the cavity.Muco-purulent material stayed in the mastoid cavity and the great part of mucous membrane of the mastoid cells were swollen.In microscopic observation of this swollen mucous membrane, some foreign bodies in epithelium of the mastoid cells were found.It became clear by Perls-Stieda's dying that foreign bodies were Hemosiderin.It was a very good fortune that author could meet with the phagocytosis in sight.The author thought that the reason why the author could have such good fortune was as follows.1. At the previous operation, a part of the mastoid cells was left.2. By mastoid obliteration, tissue able to become a foreign body was introduced.3. The second operation was performed just in time phagocytic action had taken place in the previously operated mastoid.

• 社団法人 日本耳鼻咽喉科学会の論文

著者

• 藤田 省二

  長崎大学医学部耳鼻咽喉科学教室

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