先天性鳃裂瘘管囊肿临床少见,第三鳃裂完全性瘘管尤为罕见。作者自1990～1999年治疗先天性第三鳃裂瘘管2例,报道如下。例1,女,18岁。6岁时无明显诱因下出现左颈侧肿块,反复红肿,逐渐增大约3cm×5cm大小隆起,曾在当地医院切开排脓4次,遗有瘘管不愈,时有细碎食物自瘘管外溢。经抗 Congenital branchial fistula cysts are rare, the third branchial cleft fistula is particularly rare. The author from 1990 to 1999 in the treatment of congenital third branchial fistula in 2 cases, reported as follows. Example 1, female, 18 years old. 6-year-old no obvious incentive to appear under the left neck mass, repeated swelling, and gradually increased the size of about 3cm × 5cm uplift, had cut in the local hospital abscess 4 times, left the fistula unhealed, when the fine food spill from the fistula. After the anti