Retroperitoneum ganglioneuroma: imaging features and surgical outcomes of 35 cases at a Chinese Institution

BMC Medical Imaging

Table 4 Comparison of Clinical and imaging parameters of GNs based on blood loss

Variables	Gender		Encasing the aorta and/or vena cava		Encasing one or both renal pedicles		Encasing the origin of CA and/or SMA		Calcification		Whorled sign
Variables	Male	Female	Yes	No	Yes	No	Yes	No	Yes	No	Yes	No
A
Blood loss < 400 ml	12	8	4	16	2	18	1	19	1	12	6	5
Blood loss ≥ 400 ml	6	9	8	7	11	4	3	12	7	4	8	0
Fisher exact test	1.333		4.106		14.305		1.851		8.042		4.675
P value (2-tailed)	0.248		0.043		< 0.01		0.174		0.005		0.031

Variables	Age	Maximal diameter on axial images	Maximal diameter on coronal images	CT value
Variables	Age	Maximal diameter on axial images	Maximal diameter on coronal images	Unenhanced	Arterial phase	Venous phase
B
Blood loss < 400 ml	40.50 ± 14.07	5.27 ± 1.82	6.46 ± 2.69	31.22 ± 5.02	37.93 ± 6.55	43.42 ± 13.59
Blood loss ≥ 400 ml	37.27 ± 10.74	10.77 ± 3.72	11.69 ± 4.09	33.16 ± 9.41	36.73 ± 13.40	42.17 ± 12.90
t value	1.430	− 5.274	− 4.599	− 0.645	0.287	0.202
P value (2-tailed)	0.162	< 0.01	< 0.01	0.526	0.777	0.842

ISSN: 1471-2342