1992 Volume 2 Pages 171-175
CT-scan could differentiate malignant from benign nodules with sensitivity 87.5% (42 cases). CT-scan could differentiate either group with sensitivity 1. papillary carcinoma (12 of 14 cases ; 85.7%), 2. malignant tumor except for papillary carcinoma (4 of 8 cases ; 50%), 3. follicular adenoma and adenomatous goiter (22 of 24 cases ; 91%), 4. another benign lesion (0 of 2 cases ; 0%). This classification in CT study is useful for diagnosis and treatment of thyroid disease.