What is the fine-grained topic of the following text: Other common ear surgeries include myringotomy tubes (small tubes inserted into the eardrums to provide ventilation and drainage for children who experience chronic ear infections), tympanoplasty (to repair eardrum perforations), mastoidectomy (to remove portions of the mastoid bone affected by infection, growth or disease) and surgeries to remove acoustic neuroma and other tumors. Only return the topic.
Common Ear Surgeries