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随访1962～1980年间251例乳突根治术患者,残留胆脂瘤者42例,其中中鼓室20例,上鼓室17例,乳突5例。发现年龄小者,胆脂瘤复发危险大(P=0.003);镫骨被胆脂瘤覆盖或足弓被侵蚀、中耳粘膜被胆脂瘤基质取代者,复发机会亦大。其原因可能为:①乳突腔被弥漫性胆脂瘤基质浸润,鳞状上皮清除不彻底;②儿童残留基质具有较大增殖力;③年幼者中耳解剖学特征性裂隙的存在,易被胆脂瘤侵犯。作者主张行开放式乳突根治术,易于
From 1962 to 1980, 251 cases of radical mastoidectomy patients, 42 cases of residual cholesteatoma, including 20 cases in the tympanic cavity, upper drum in 17 cases, 5 cases of papillae. Found that younger patients, the risk of cholesteatoma recurrence (P = 0.003); tarsal bone was covered by cholesteatoma or arch was eroded, the middle ear mucosa was replaced by cholesteatoma matrix, the chance of recurrence is also large. The reason may be: ① mastoid cavity is diffuse cholesteatoma matrix infiltration, squamous epithelium is not completely removed; ② residual matrix of children with greater proliferative capacity; ③ young middle ear anatomical features of the existence of cracks, easy Cholesteatoma violations. The authors advocate open radical mastoidectomy, easy