Abstract：
BACKGROUND: Cerebellopontine angle lipoma is a rare tumor that composes less than 1% of all CPA tumors. There has been no recorded case of unilateral CPA/IAC lipoma with sudden contralateral deafness yet.
METHODS: We report a 52-year-old man diagnosed with right cerebellopontine angle lipoma and combined left total deafness. Pure-tone audiometry revealed total sensorineural deafness in his left ear and moderate sensorineural deafness in the right ear. The patient was treated with glucocorticoids, batroxobin, and other symptomatic treatments. There was no substantial improvement in hearing after 14 days\' treatment.
CONCLUSIONS: We chose conservative treatment for him. It is advised to wear hearing aids in the right ear and to undergo regular imaging monitoring.
CONCLUSIONS: Treatment options for such patients should be chosen by taking into account the degree of bilateral hearing loss, the size and location of the tumor, the possibility of preserving hearing during surgery, the functional level of the patient\'s facial nerve, and other factors.
METHODS: We report a 52-year-old man diagnosed with right cerebellopontine angle lipoma and combined left total deafness. Pure-tone audiometry revealed total sensorineural deafness in his left ear and moderate sensorineural deafness in the right ear. The patient was treated with glucocorticoids, batroxobin, and other symptomatic treatments. There was no substantial improvement in hearing after 14 days\' treatment.
CONCLUSIONS: We chose conservative treatment for him. It is advised to wear hearing aids in the right ear and to undergo regular imaging monitoring.
CONCLUSIONS: Treatment options for such patients should be chosen by taking into account the degree of bilateral hearing loss, the size and location of the tumor, the possibility of preserving hearing during surgery, the functional level of the patient\'s facial nerve, and other factors.
摘要：
背景：桥脑角脂肪瘤是一种罕见的肿瘤，占所有CPA肿瘤的不到1％。尚无记录的单侧CPA/IAC脂肪瘤伴突发性对侧耳聋的病例。
方法：我们报告了一名52岁的男性，诊断为右侧小脑桥脑角脂肪瘤并合并左侧全聋。纯音测听显示左耳完全感音神经性耳聋，右耳中度感音神经性耳聋。患者接受糖皮质激素治疗,巴曲酶,和其他对症治疗。治疗14天后听力无实质性改善。
结论：我们选择保守治疗。建议在右耳佩戴助听器，并定期进行成像监测。
结论：此类患者的治疗选择应考虑双侧听力损失的程度，肿瘤的大小和位置,手术期间保留听力的可能性，患者面神经的功能水平，和其他因素。
方法：我们报告了一名52岁的男性，诊断为右侧小脑桥脑角脂肪瘤并合并左侧全聋。纯音测听显示左耳完全感音神经性耳聋，右耳中度感音神经性耳聋。患者接受糖皮质激素治疗,巴曲酶,和其他对症治疗。治疗14天后听力无实质性改善。
结论：我们选择保守治疗。建议在右耳佩戴助听器，并定期进行成像监测。
结论：此类患者的治疗选择应考虑双侧听力损失的程度，肿瘤的大小和位置,手术期间保留听力的可能性，患者面神经的功能水平，和其他因素。
