Table 1. Comparison of Ultrasonographic Findings between TL and KD.

Findings	TL (n = 77)	KD (n = 135)	P
Size
Long diameter (cm)	2.28 ± 0.9	1.78 ± 0.57	< 0.001
Short diameter (cm)	1.41 ± 0.56	0.86 ± 0.28	< 0.001
Shape
S/L ratio	0.63 ± 0.14	0.49 ± 0.1	< 0.001
Gray scale ultrasonography
Conglomeration (%)	23 (29.9)	24 (17.8)	0.062
Increased perinodal echogenicity (%)	57 (74)	103 (76.3)	0.839
Echogenic hilum (%)	19 (24.7)	122 (90.4)	< 0.001
Posterior neck involvement (%)	45 (58.4)	100 (74.1)	0.028
Calcification (%)	28 (36.4)	0 (0)	< 0.001
Internal necrotic pattern (non/partial/gross)	22/37/18	123/11/1	< 0.001
Laterality (bilateral)	11 (14.3)	29 (21.5)	0.269
Power Doppler ultrasonography
Hilar vascular pattern (normal/avascular/displaced)	5/60/12	117/12/6	< 0.001

Unless otherwise specified, data are means ± standard deviations. KD = Kikuchi disease, S/L ratio = ratio of short diameter to long diameter, TL = tuberculous lymphadenitis