Table 1 Summary of clinical, pathological and imaging factors

Median age (range) years

45 (26-72)

Sex M:F

13:9

Location (n, %)

Thigh

15 (68%)

Calf

6 (27%)

Neck

1 (4.5%)

Round Cell Component (n,range of %)

n = 9 (5-30%)

Follow-up

Median, range

57 mos (12-96 mos)

Alive and Well (median, range)

n = 17 (35 mos, 12-96 mos)

Alive with Disease (range)

n = 3 (61,67, 72 mos)

Dead of Disease (range)

n = 2 (82, 16 mos)

Metastases (median, range)

n = 6 (26, 22-51 mos)

Post-Treatment Pathological Findings

Median Size (range)

11 (2-18) cm

Tumor with Treatment Changes (median %, range)

95% (90-95%)

Hyalinization (median %, range)

90% (10-95%)

Fat Maturation

Median (range)%

10% (5-90%)

Prominent >50% (n)

n = 6 with 2 >90%

Necrosis (median %, range)

5% (5-10%)

Radiological Changes

Decrease in Tumor Size (median % decrease, range)

65% (30 - 94%)*

Fat Amount Change (n, % of cases with changes)

Decrease <25%

1 (4.5%)

No change

14 (63.6%)

Increase <25%

3 (13.6%)

Increase 25-49%

2 (9.1%)

Increase >50%

2 (9.1%)

Contrast Media Change (n, % of cases with changes)

Increase <25%

1 (4.5%)

Decrease <25%

7 (31.8%)

Decrease 25-49%

9 (40.9%)

Decrease >50%

5 (22.7%)