The Utility of Chest Imaging for Surveillance of Atypical Lipomatous Tumors
Table 1
Baseline demographic and tumor characteristics.
Variable
Overall (n = 190)
MDM2 positive (n = 88)
MDM2 not performed (n = 102)
value
n
(%)
n
(%)
n
(%)
Age (mean, yrs)
61.7 ± 13.1
62.2 ± 13.7
61.4 ± 12.6
0.67
Sex (male)
100
52.6
46
52.3
54
52.9
0.93
BMI (mean)
28.1 ± 5.2
28.4 ± 5.3
27.8 ± 5.1
0.44
Margin status
0.22
Positive
127
66.8
63
71.6
64
62.7
Negative
49
25.9
16
18.2
33
37.3
Could not be determined
14
7.4
9
10.2
5
4.9
Location
0.98
Upper extremity
25
13.2
12
13.6
13
12.7
Lower extremity
156
82.1
73
83.0
83
81.4
Superficial torso
9
4.7
3
3.4
6
5.9
Size (cm)
17.7 ± 8.5
19.3 ± 7.8
16.3 ± 9.0
0.02
CT scans (mean)
0.9 ± 2.1
0.7 ± 2.6
1 ± 1.7
0.39
CXRs (mean)
1.3 ± 2.5
1.4 ± 2.3
1.3 ± 2.8
0.61
Local recurrences (total)
36
18.9
16
18.2
20
19.6
0.75
Cost (mean, $),^
323.58 ± 585.95
371.40 ± 689.57
281.08 ± 475.01
0.25
Follow-up time (mean, months)
58.6 ± 33.1
47.2 ± 27.7
68.4 ± 34.2
<0.001
Continuous variables presented with mean and SD. ^Costs were calculated based on publicly available averages for CT scans of the thorax without contrast ($285) and chest radiographs with 2 views ($60.93) in North Carolina. Bold values represent statistical significance at p < 0.05.
