Borderline Ovarian Tumors and Diagnostic Dilemma of Intraoperative Diagnosis: Could Preoperative He4 Assay and ROMA Score Assessment Increase the Frozen Section Accuracy? A Multicenter Case-Control Study

Table 2

Preoperative ultrasound features of the pelvic mass: comparison between the groups (Group_A versus Group_B).

TVS morphological features		Number	Mean value	Standard deviation	value
Size of pelvic mass; (TVS investigation)	Group_A	43	12.33	4.48	n.s
	Group_B	70	11.77	5.18
TVS morphological features			Category	Number (%)	value
Echogenicity	Group_A	43	Anechoic	24 (55.8)	n.s
			Hypoechoic	19 (44.2)
	Group_B	70	Anechoic	38 (54.3)
			Hypoechoic	32 (45.7)
Intracystic septa	Group_A	43	Yes	23 (32.9)	n.s
			No	47 (67.1)
	Group_B	70	Yes	7 (16.3)
			No	36 (83.7)
Intracystic papillae	Group_A	43	Yes	22 (31.4)	n.s
			No	48 (68.6)
	Group_B	70	Yes	7 (16.3)
			No	36 (83.7)
Atypical vascularization	Group_A	43	Yes	23 (32.9)	n.s
			No	47 (67.1)
	Group_B	70	Yes	7 (16.3)
			No	36 (83.7)