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中耳胆固醇肉芽肿 ( MECG)常并存于各种慢性中耳疾病中 ,尤其常与胆脂瘤型中耳炎及骨疡型中耳炎共存。其病因通常认为与含气腔通气受阻、腔内出血及引流障碍等因素有关。中耳胆固醇肉芽肿形成是否与炎症因素有关 ,其作用机制如何 ,均尚不清楚。细胞间粘附分子 - 1 ( Intercellu
Cholesterol middle ear granuloma (MECG) often coexist in a variety of chronic middle ear disease, especially with cholesteatoma otitis media and otitis media type coexistence. The etiology is generally considered to be blocked with gas-containing ventilation, intracavitary bleeding and drainage disorders and other factors. Whether the formation of middle ear cholesterol granuloma is related to inflammatory factors and its mechanism of action are still not clear. Intercellular adhesion molecule - 1 (Intercellu