House J L, Brackmann D E
Arch Otolaryngol. 1982 Aug;108(8):504-6. doi: 10.1001/archotol.1982.00790560042012.
Two unusual cases of cholesterol granuloma of the temporal bone manifested as cerebellopontine angle tumors. To our knowledge, cerebellopontine angle extension of this lesion has not previously been reported. Obstruction of ventilation and drainage of any air complex in the temporal bone may produce cholesterol granuloma. Asymptomatic involvement of the mastoid air cell system is common in chronic otitis media. Surgical management of cholesterol granuloma with cerebellopontine angle extension is recommended. Total excision of the lesion is preferred; marsupialization into the mastoid air cell system is an alternative if excision would produce a major neurologic deficit.
两例不寻常的颞骨胆固醇肉芽肿表现为桥小脑角肿瘤。据我们所知，此前尚无该病变向桥小脑角延伸的报道。颞骨内任何气房系统的通气和引流受阻都可能产生胆固醇肉芽肿。乳突气房系统无症状受累在慢性中耳炎中很常见。对于有桥小脑角延伸的胆固醇肉芽肿，建议进行手术治疗。首选将病变完全切除；如果切除会导致严重神经功能缺损，可选择将其袋形缝合到乳突气房系统。
