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先天性耳前瘘管为第一鳃裂封闭不全所致,瘘口常位于耳轮脚前,走行于外耳道周围。本例瘘口位于下颌角上1.5厘米处,瘘管通过腮腺绕过而神经,到达外耳道内端近鼓沟处实属少见。患儿,女2岁。生后即发现左下颌角上方有一白点,半年前无明显诱因红肿,流脓性分泌物,在当地医院治疗无效收住我院。体查:左下颌角上方1.5厘米处有一皮肤破溃面,红肿,挤压后有脓性分泌物
Congenital anterior fistula due to the first branchial insufficiency caused by fistula often located in the ear before the foot, walking in the external auditory canal around. In this case, the fistula is located at 1.5 cm on the mandibular angle. The fistula passes around the parotid gland and reaches the nerve near the gullet at the inner end of the external auditory meatus. Children, female 2 years old. After birth that left mandibular angle above a white point, six months ago no obvious incentive redness, purulent secretions, ineffective in the local hospital for admission to our hospital. Physical examination: 1.5 cm above the left mandibular angle there is a skin ulceration surface, swelling, squeezing purulent secretions