Table 2.

Two-dimensional and color Doppler ultrasound findings of the 16 patients with YSTs.

Ultrasonic classification		Cystic (n=2)	Cystic-solid Mixed (n=4)	Solid (n=10)
Number		12.50% (2/16)	25% (4/16)	62.50% (10/16)
Position	Left		12.50% (2/16)	31.25% (5/16)
	Right	12.50% (2/16)	12.50% (2/16)	12.50% (2/16)
	Other			18.75% (3/16)
Maximum diameter (cm)		9.6~12.1	10.7~25	6.9~16.9
Shape	Regular	12.50% (2/16)	18.75% (3/16)	38.45% (7/16)
	Irregular	0	6.25% (1/16)	43.75% (3/16)
Border	Clear	12.50% (2/16)	25% (4/16)	50% (8/16)
	Unclear			12.50% (2/16)
Cystic fluid	Clear	6.25% (1/16)
	Unclear	6.25% (1/16)	25% (4/16)	12.50% (2/16)
	No			50.0% (8/16)
Separated	Yes	6.25% (1/16)	25% (4/16)	12.50% (2/16)
	No	6.25% (1/16)		50.0% (8/16)
Parenchymal echo and blood flow in the sac	Yes	6.25% (1/16)	25% (4/16)	0
	No	6.25% (1/16)	0	62.50% (10/16)
RI				0.21–0.63
Calcification	Yes		0
	No	12.50% (2/16)	25.0% (4/16)	62.50% (10/16)
Associated with ascites	No		6.25% (1/16)	25.0% (4/16)
	Mild	12.50% (2/16)	12.5% (2/16)	12.5% (2/16)
	Medium			12.50% (2/16)
	Severe		6.25% (1/16)	12.50% (2/16)
Associated with hydrothorax	Yes	6.25% (1/16)
	No	6.25% (1/16)	25% (4/16)	62.50% (10/16)
Associated with uterine fibroids	Yes	6.25% (1/16)		6.25% (1/16)
	No	6.25% (1/16)	25% (4/16)	56.25% (9/16)
Associated with Endometrial polyp	Yes	6.25% (1/16)
	No	6.25% (1/16)	25% (4/16)	62.50% (10/16)
Ultrasound diagnosis	Benign	12.50% (2/16)	6.25% (1/16)
	Uncertain			18.75% (3/16)
	Malignant		18.75% (3/16)	43.75% (7/16)