Table 3. External validation of predicting model for thymoma, 2017.

No.	Contour	Post-pre HU	Probability	Pathology
1	Smooth	30	80%	Thymoma
2	Lobulated	−5	40%	Cyst
3	Lobulated	61	99%	Thymoma
4	Smooth	20	65%	Thymoma
5	Smooth	−2	15%	Cyst
6	Smooth	6	30%	Cyst
7	Lobulated	25	95%	Thymoma
8	Smooth	−2	15%	Cyst
9	Smooth	−2	15%	Cyst
10	Smooth	11	38%	Thymoma
11	Lobulated	51	99%	Thymoma
12	Conformal	−16	1%	Cyst
13	Smooth	−5	15%	Cyst
14	Lobulated	60	99%	Thymoma
15	Conformal	2	15%	Cyst
16	Lobulated	−6	40%	Cyst
17	Conformal	25	40%	Cyst
18	Smooth	5	20%	Cyst
19	Lobulated	7	65%	Thymoma
20	Lobulated	13	90%	Thymoma