耳下腺腫瘍の超音波診断基準の検討
1989 年 82 巻 9 号 p. 1269-1273
詳細
1989 年 82 巻 9 号 p. 1269-1273
We studied 15 parotid gland tumors by ultrasonography using 7.5MHz probe with respect to boundary echo, internal echo, posterior echo, and shape. Abnormality of the boundary echo and internal echo was considered to be important findings for differentiating benign and malignant tumors.
Based on the findings of the boundary echo and internal echo in the ultrasonogram, we propose criteria for the differential diagnosis of the parotid gland tumors.
