慢性中耳炎粘膜のチステについて

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The author discussed on the formation mechanism of so-called cyst which was frequntly found in the mucous membrane of chronic otitis media or granulation of epidermization difficulty of post operative mastoid wound in histology.Results were as follows;1. There were many grades of so-called cyst formation from the “Hollow” of “epithelium” or “Tasche in germany” to looked like cyst in reality.2. From the point of view formation mechanism of so-called cyst was classified into next 4 groups.Type I. was formed by the hollow of epithelium.Type II. was formed by adhaesion or juncti. on of epithelium which had pappillary processus extended as far as opposite epithelium.Type III. was formed by adhaesion or junction of tow chnged in the papillary epitheliim.Type IV. was formeg by epithelium and regenerated mastoid cells.3. So-called cyst was formed in the mucous membrane with marked inflamation.4. So-called cyst depended on the middle ear pneumatizations grade, and it is apt to rise from the well-developed mastoid cavity.
社団法人日本耳鼻咽喉科学会の論文