鼻：鼻镜大而黑，鼻孔粗。
目的：探讨外观呈三鼻孔样先天性鼻畸形的分类与诊断，以期为临床提供较为规范的诊断标准。
Objective To discuss the classification and diagnosis of congenital nasal malformation with triple nostrils appearance and put forward a diagnostic criterion for the clinical practice.
在文献中，双套鼻及第三鼻孔的报告相当罕见，只有不到十二例的病例被报告出。
No more than a dozen cases of supernumerary nostril are reported in the literature. They have an accessory alae nasi or have double nose.
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