1995 年 88 巻 3 号 p. 355-360
A rare parotid gland tumor, papillary cystadenocarcinoma, was diagnosed clinicopathologically. This tumor was classified for the first time by the world Health Organization (W.H.O.) in 1991. It was interesting that this tumor was characterized by cysts and papillary endocystic projections. The histogenesis is discussed.