your limit has been reached. plz Donate us to allow your ip full access, Email: sshnevis@outlook.com
Uptodate Reference Title
Paths of extension by acquired cholesteatoma
Paths of extension by acquired cholesteatoma
PS: posterior superior quadrant toward mastoid; PF: pars flaccida toward attic (pneumatized space just superior to the middle ear); TS: retraction at old tube site toward middle ear.