Graham M D
Ann Otol Rhinol Laryngol. 1979 Jul-Aug;88(4 Pt 1):566-72. doi: 10.1177/000348947908800422.
Osteomas of the external auditory canal are considered clinically to be discrete, pedunculated bone lesions arising along the tympanosquamous suture. They are benign lesions but often are slowly progressive in size. Exostoses of the external auditory canal are broad-based elevations of bone usually multiple and bilaterally symmetric, involving the tympanic bone. It appears that both clinical and histopathologic evidence is sufficient to justify the impression that these two lesions should be considered separate entities and clinical diagnostic and histopathologic criteria have been suggested for diagnosis of these lesions.
外耳道骨瘤在临床上被认为是沿鼓鳞缝出现的离散性、有蒂骨病变。它们是良性病变，但大小通常呈缓慢进展。外耳道骨疣是通常多发且双侧对称的、累及鼓骨的宽基底骨隆起。似乎临床和组织病理学证据都足以支持这样的观点，即这两种病变应被视为不同的实体，并且已经提出了用于诊断这些病变的临床诊断和组织病理学标准。
