患者男性，38岁，干部，因偶然发现右眼下缘无痛性进行性增大包块3月余，于1998年7月对日入院。患者发现包块时，包块形如黄豆大小，时常触们包块，无压痛等不适，无突眼、眼球活动障碍，双眼视力1．0（戴镜）。既往身体健康，否认结核病史及接触史。查体：一般情况良好，全身 Male patient, 38 years old, cadre, due to accidental discovery of the right lower edge of the painless progressive increase mass more than 3 months, in July 1998 admitted to Japan. When patients found mass, the mass of lumps, such as soybean size, often touch the mass, no tenderness and other discomfort, no exophthalmos, eye movement disorders, binocular vision 1.0 (wearing glasses). Past physical health, history of denied tuberculosis and exposure. Physical examination: the general situation is good, the whole body