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患者男性,16岁,发热、头痛、呕吐1周入院。自幼左耳流脓。乳突X线摄片示左侧慢性中耳乳突炎改变,上鼓室鼓窦区有可疑病灶,乙状窦及天盖骨质无明显破坏。血象:白细胞计数15.9×10~9/L;中性粒细胞78％;淋巴细胞22％。考虑耳源性颅内感染而给予抗感染,间断使用激素及降颅压药物治疗。1周后病情无好转。行颅脑CT扫描示左小脑区呈现圆形低密度病灶,边界清,范围约5.1×7.3×7cm,CT值9Hu,第四脑室受压右移,第三脑脑室及双侧脑室扩大。拟诊耳源性小脑脓肿,于局麻下行左乳突探查术。开放乳突腔后恶
Male patient, 16 years old, fever, headache, vomiting, 1 week admission. Left ear pus from childhood. Mastoid X-ray showed chronic left middle ear otitis media changes in the tympanic drum on the suspicious lesions, sigmoid sinus and the skull no significant damage. Blood: white blood cell count 15.9 × 10 ~ 9 / L; neutrophils 78%; lymphocytes 22%. Consider the otogenic intracranial infection given anti-infective, intermittent use of hormones and intracranial pressure medication. After 1 week the condition did not improve. CT scan showed that the left cerebellum showed a circular low-density lesion with a clear boundary with a range of 5.1 × 7.3 × 7cm and a CT value of 9Hu. The pressure in the fourth ventricle shifted to the right and the third ventricle and the bilateral ventricle were enlarged. To diagnose otogenic cerebellar abscess, left mastoid exploration under local anesthesia. Open the mastoid cavity after evil