Table 1.

Relationship between maximal diameter of the 41 adrenocortical carcinomas and the other tumour characteristics evaluated using computed tomography (CT).

Tumour characteristic	Maximal diameter of tumours (cm)
	Total	≤6	6.1–9	9.1–12	12.1–15	≥15.1
No. of tumours by size	41	3	16	7	8	7
Shape
Round or oval	11 (27%)	1	5	1	1	3
Lobulate	30 (73%)	2	11	6	7	4
Margin
Well defined	29 (71%)	3	14	4	6	2
Ill defined	12 (29%)	0	2	3	2	5
Rim enhancement	25 (64%)b	2	14	3	5	1
Calcification	15 (37%)	1	4	2	4	4
Shape of central hypodensity
Stellate	21 (51%)	1	6	2	5	7
Irregular	20 (49%)	2	10	5	3	0
Crossing midline	2 (5%)	0	0	0	0	2
Adjacent organ invasion
Liver	4 (10%) [1] {1}	0 [1]	1	0	1 [1]	2
Kidney	4 (10%) [2]	0	0	0	0	4 [2]
Pancreas	1 (2%) [1]	0	0	1 [1]	0	0
Stomach	1 (2%) [1]	0	0	1 [1]	0	0
Diaphragm	1 (2%) [1]	0	0	1 [1]	0	0
Venous thrombus
Inferior vena cava	6 (15%) [3] {1}	0	1 [1] {1}	1	1 [1]	3 [1]
Renal vein	2 (5%) [2]	0	1 [1]	0	0	1 [1]
Gonadal vein	1 (2%) [1]	0	1 [1]	0	0	0
Lymphadenopathy	4 (10%) [2] {1}	0	1 [1]	1 [1]	2	0 {1}
Visceral metastases
Liver	4a (10%) [2]	0	0	1	1 [1]	2 [1]
Lung	2 (5%)	0	0	1	0	1
Bone	1a (2%)	0	0	1	0	0

Totals relate to findings at CT. () = Percent of total of 41 patients, unless otherwise stated; [] = number of cases with findings on CT confirmed surgically and/or histopathologically; {} = number of cases with findings not identified on preoperative CT, but found at surgery, i.e., false-negative CT.

^aOne patient had both liver and bone metastases.

^bBased on 39 cases with contrast-enhanced CTs.