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患者,男,16岁。因双耳流黄色分泌物,渐进性听力下降2年,于1996年11月5日入院。检查:全身状况良好,双外耳道和上、下肢及脚、指关节伸侧面皮肤和颈后皮肤均见1～6cm大小不等的土黄色扁平块状隆起,鼓膜窥视不清;双耳传导性耳聋,平均听阈45dB;血清胆固醇测定为14.33mmol/L。局部麻
Patient, male, 16 years old. Due to the flow of yellow secretions, gradual decline in hearing for 2 years, on November 5, 1996 admission. Check: the general condition is good, double external auditory canal and the upper and lower limbs and feet, joint extension skin and neck skin are seen 1 ~ 6cm in size ranging from yellowish flat lump bulge, eardrum peeping unclear; binaural conductive deafness , The average hearing threshold 45dB; serum cholesterol was 14.33mmol / L. Local anesthesia