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Abstract：
Caudal appendage is a rare malformation which has since ever been interesting. We present the case of a girl in which a caudal appendage was discovered before birth. A throughout checking found an extension from this abnormality to the cordal spine. The baby is operated when 2months old. Differential diagnosis are spina bifida, teratoma and pilonidal sinus. Caudal appendage is one of the typical cutaneous finding with underlying spinal dysraphism, such as hair tuft or pigmented macule. The risk is a tethered cord syndrome that can lead to severe complication. The treatment is either surgery or expectation.
摘要：
尾端是一种罕见的畸形，自此就很有趣。我们介绍了一个女孩的案例，其中在出生前发现了尾附件。经过检查发现，这种异常延伸到了脊髓。婴儿在2个月大的时候手术。鉴别诊断是脊柱裂,畸胎瘤和藏毛窦。尾附件是典型的皮肤发现之一，伴有潜在的脊柱发育不良，如毛发簇绒或色素斑。风险是可导致严重并发症的脊髓栓系综合征。治疗要么是手术，要么是期望。
