先天性頸部嚢胞の検討—正中頸嚢胞50例，および側頸嚢胞23例の臨床統計的観察

Congenital Cervical Cysts and Fistulas; 50 Thy roglossal Cysts and 23 Branchial Cleft Cysts

I．はじめに

　日常臨床において遭遇する頸部領域の腫瘤のうち，正中頸嚢胞および側頸嚢胞を中心とする先天性頸部嚢胞は一般に悪性腫瘍との鑑別診断上重要なものであるが，それ自体，再発などの問題もあり，あながち軽視できない点がある。今回われわれは，1970年から1980年までの11年間に当科において手術的治療を受けた先天性頸部嚢胞疾患のうち，正中頸嚢胞50例，側頸嚢胞23例につき，臨床統計的検討を加えたのでここに報告する。

Fifty cases of thyroglossal cysts and 23 cases of branchial cleft cysts were surgically treated in the last 11 years. The distinctive features of these two cystic diseases were as follows.

1) Thyroglossal cysts : Sex preponderance of the male to female was 29 : 21. Eighty percents of the cysts located inferiorly to the hyoid bone in the middle neck.

According to the comparison of the group treated with Sistrunk method (removal of the hyoid bone) and the group without, the relapse ratio was lower in the latter, also the functional disturbance by removal of the hyoid bone had never been reported. So the authors conclude that Sistrunk method should be performed for our routine use.

2) Branchial cleft cysts : The male and female ratio was 14 : 9, and the left and right ratio was 14 : 9. In Bailey's classification, type II was the most common.