若年に発症し，大きな囊胞を形成したワルチン腫瘍症例

A Case of Warthin's Tumor Developed at Youth and Formed a Large Cyst

I．はじめに

　ワルチン腫瘍は，唾液腺の良性腫瘍では多形腺腫に次いで多く，主に高齢者に発症する^1）。その診断は臨床所見や画像検査，針生検の結果などから多くの症例で術前に診断可能であるが，ときに囊胞性変化を呈し，術前診断ができなかった例が散見される^2,3）。

　今回われわれは，若年者に発症し比較的大きな囊胞を形成したワルチン腫瘍症例を経験したので，文献的考察を加えて報告する。

A 22-year-old man complained of a swelling of his left neck.

　The preoperative examination results showed a lymphoepithelial cyst which was thought occurred in the lower part of parotoid gland or lateral cervical region. The pathological diagnosis was Warthin's tumor.

　It is very rare to find a Warthin's tumor in young child. In many cases diagnosis was made from clinical observation,image examination and the results of preoperative needle biopsy. But in the case diagnosis was not made before operation because of a cystic change of the tumor.