初期真珠腫に対するtransmeatal atticotomy

抄録

Transmeatal atticotomy is a good means for treatment of early cholesteatoma developing in the pars flaccida of the eardum.
In the technique, the epitympanic space is exposed by removing posterosuperior wall of the external auditory canal.
The ossicles, mucosa on the medical wall and the pars tensa of the eardrum are not disturbed. After removal of disease lateral wall of the attic and the defect of the eardrum are reconstructed.
The advantages of this method include a better ventilation and reepithelization of the attic space, decrease in retraction of the lateral wall, better hearling and better hearing.