Table 1.

Patient characteristics and CT image findings.

	All patients (n = 63)	Thymic carcinoma (n = 12)	Thymoma (n = 34)	Thymic cysts (n = 17)	P value
Age∗	62.2 ± 11.4 (34–85)	64.0 ± 6.7 (56–78)	60.7 ± 12.8 (34–80)	63.7 ± 10.5 (45–85)	.77∗∗
Sex					.55∗∗∗
Male	36	8	17	11
Female	27	4	17	6
Maximum long axis of tumor (mm)∗	35.5 ± 18.0 (9.0–84.3)	45.5 ± 19.9 (9.0–84.3)	32.8 ± 16.0 (9.2–70.8)	33.8 ± 17.7 (15.0–76.5)	.16∗∗
Maximum short axis of the thymic vein (mm)∗	1.79 ± 0.52 (0.9–3.4)	2.42 ± 0.46 (1.7–3.4)	1.71 ± 0.35 (1.2–2.8)	1.50 ± 0.51 (0.9–2.8)	<.001∗∗
Lobulated shape		7	16	6	.052∗∗∗
Irregular contour		2	1	0	.15∗∗∗
Ill-defined margin		5	1	0	.003∗∗∗
Focal low-attenuation area		8	8	0	<.001∗∗∗
Involvement of great vessels		4	1	0	.005∗∗∗
Mediastinal lymphadenopathy		5	0	0	<.001∗∗∗

^∗mean ± standard deviation (minimum–maximum).

^∗∗Kruskal–Wallis test.

^∗∗∗Fisher exact test.