Presurgical Identification of Uterine Smooth Muscle Malignancies through the Characteristic FDG Uptake Pattern on PET Scans
Table 2
Detailed histopathological and imaging findings of the study patients ().
Patient #
Pathological diagnosis
Metabolic tumor/necrosis ratio
SUVmax
FDG uptake pattern
Tumor diameter (cm)
Mitotic count (per 10 HPF)
1
High-grade LMS
4.388
11.1
“Hollow ball” sign
11.9
23
2
High-grade LMS
2.703
11.4
“Hollow ball” sign
5.5
25
3
High-grade LMS
1.707
11.4
“Hollow ball” sign
17.4
30
4
High-grade LMS
N/A
11.4
“Hollow ball” sign
11.4
20
5
High-grade LMS
N/A
11.8
“Hollow ball” sign
5.8
15
6
Low-grade LMS
5.533
4.3
“Hollow ball” sign
8.8
5
7
Low-grade LMS
1.421
3.7
“Hollow ball” sign
8.6
10
8
STUMP
2.036
5.4
“Hollow ball” sign
13.7
5
9
Ordinary leiomyoma
1.063
2.2
Diffuse low
14.0
10
Ordinary leiomyoma
1.013
4.2
Focal
6.5
11
Ordinary leiomyoma
0.964
4.0
Heterogeneous
8.8
12
Ordinary leiomyoma
0.955
2.0
Diffuse low
16.0
13
Ordinary leiomyoma
0.896
3.1
Heterogeneous
5.7
14
Ordinary leiomyoma
N/A
6.0
Focal
10.2
15
Ordinary leiomyoma
N/A
5.8
Heterogeneous
5.4
16
Ordinary leiomyoma
N/A
3.9
Focal
5.0
17
Ordinary leiomyoma
N/A
3.5
Focal
16.7
18
Degenerated leiomyoma
1.038
2.5
Diffuse low
10.2
19
Degenerated leiomyoma
N/A
3.5
Heterogeneous
11.6
20
Cellular leiomyoma
1.069
2.5
Diffuse low
7.9
21
Infarcted leiomyoma
1.034
9.4
Diffuse high
11.1
The images of seven patients (whose raw data were lost because of a >10-year storage time) were not available for reanalysis; measured on ultrasound or MRI; LMS, leiomyosarcoma; STUMP, smooth muscle tumor with uncertain malignant potential; N/A, not available; HPF, high-power field.
