コレステリン肉芽腫手術症例14例の検討

Abstract

We reviewed the results of surgical treatment of 14 ears with middle ear cholesterol granulomas. The goals of surgery for cholesterol granulomas are to remove the focus and improve the ventilation disorder. There are two ways to treat the mastoid cavity in surgery for cholesterol granulomas: one is to form a pneumatic cavity by keeping the ventilation route (canal wall up (CWU), canal wall down (CWD) and canal reconstruction), and the other is to lighten the burden of the Eustachian tube by narrowing the ventilation space (CWU with mastoid obliteration, CWD).