Among the extracranial complications, mastoid abscess, postauricular fistula, and facial palsy were encountered in 26 (37%), 17 (24%) and 10 (14%) patients, respectiely.

• 颅外并发症有乳突脓肿（26个，37%25）、耳廓后瘘（17个，24%25）和面瘫（10个，14%25）。