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首页> 美国卫生研究院文献>Journal of Audiology Otology >Unusual Tumors Obstructing the External Auditory Canal: Report of Two Cases
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Unusual Tumors Obstructing the External Auditory Canal: Report of Two Cases

机译：异常肿瘤阻塞外耳道：两例报告

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摘要

Primary tumors arising from the external auditory canal (EAC) are rare. We describe two cases of mass lesions within the EAC causing slowly progressive hearing loss without otorrhea or otalgia. Otoendoscopic examination demonstrated total obstruction of the EAC, and pure tone audiometry revealed conductive hearing loss. Based on the findings of the histopathologic examination, one patient was diagnosed with venous hemangioma that was treated using surgical resection, and the other patient was diagnosed with diffuse large B-cell lymphoma (DLBCL) that was treated using external-beam radiation therapy. Although primary tumors in the EAC are rare, both benign tumors such as venous hemangiomas and malignant lesions such as DLBCL should be considered as possible differential diagnoses of mass lesions in the EAC.
机译：外耳道（EAC）引起的原发肿瘤很少见。我们描述了在EAC内引起缓慢渐进性听力丧失而没有耳漏或耳痛的两例大规模病变。耳镜检查显示完全阻塞了EAC，纯音测听发现传导性听力损失。根据组织病理学检查的结果，一名患者被诊断为通过手术切除术治疗的静脉血管瘤，另一名患者被诊断为通过外照射治疗的弥漫性大B细胞淋巴瘤（DLBCL）。尽管EAC中的原发肿瘤很少见，但应将良性肿瘤（如静脉血管瘤）和恶性病变（如DLBCL）视为EAC肿块病变的可能鉴别诊断。

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