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头颈部皮样囊肿的发生率为全身的33％,发生于鼻部者为1～2.6％。半数发生于儿童中,可在2～3岁时手术。鼻部皮样囊肿常发干中线,其位置如下:(1)鼻翼软骨间;(2)鼻梁部;(3)鼻骨深部的中隔软骨处。 X线片可见鼻骨分离、中隔分叉、筛窦不对称、软组织肿胀。瘘管及囊肿可用碘油造影。应与以下各病鉴别: 1.先天性神经瘤: (1)鼻神经胶质瘤:多位于中线,稍偏一旁,为皮下的硬肿块,其上皮肤有微血管扩张,
Head and neck dermoid cyst incidence of 33% of the body, occurred in the nose were 1 to 2.6%. Half occur in children, surgery in 2 to 3 years old. Nasal dermoid cysts often dry trunk line, its location is as follows: (1) between the alar cartilage; (2) the nasal bridge; (3) deep nasal cartilage at the septum. X-ray visible nasal bone separation, bifurcation, ethmoid asymmetry, soft tissue swelling. Fistula and cyst can be lipiodol angiography. Should be identified with the following diseases: 1. Congenital neuroma: (1) nasal glioma: more in the midline, slightly biased side of the subcutaneous hard lumps, the upper dermis with microvascular dilatation,