例1:男,7岁,6个月前感冒后出现右耳后红肿、疼痛,耳道流脓,听力减退,发热,头痛。在当地医院切开排脓、换药、抗炎等治疗好转。近4天又复发,症状与初起时相似。过去无耳流脓史。以急性乳突炎并发耳后骨膜下脓肿入院。检查:体温37.1,脉搏120,无面神经麻痹。右侧耳廓与头颅呈垂直位,耳后肿胀,有压痛及波动感,外耳道有少量脓性分泌物,清拭后见内、中1/3交界处及后上壁充血肿胀致外耳道狭窄,鼓膜窥不见,听力检 Example 1: Male, 7 years old, 6 months after the onset of the right ear after a cold, swelling, pain, ear pus, hearing loss, fever, headache. In the local hospital cut abscess, dressing, anti-inflammatory and other treatment improved. Nearly 4 days and relapse, the symptoms are similar to the beginning. No past history of ear pus. Acute mastoiditis complicated with posterior subperiosteal abscess admission. Check: body temperature 37.1, pulse 120, no facial nerve paralysis. The right auricle and the skull were vertical position, ear swelling, tenderness and volatility, a small amount of purulent secretion of the external auditory meatia, see after swabbing, 1/3 at the junction and the posterior wall hyperemia caused by external auditory canal narrow, Tympanic membrane glimpse, hearing test