Table 1.

Clinical characteristics of 24 F- D3 RMS tumors.

	F- D3 RMS (n=24)
Original histology assignment
Embryonal RMS	19 (79%)
Spindle cell RMS	3 (13%)
Botryoid RMS	1 (4%)
Alveolar RMS	0 (0%)
RMS NOS	1 (4%)
Age at diagnosis
≤ 1year	3 (13%)
1–10 years	12 (50%)
10–21 years	9 (37%)
Gender
Female	8 (33%)
Male	16 (67%)
Primary site
Genitourinary	11 (46%)
Head/neck	8 (33%)
Extremities	0 (0%)
Other	5 (21%)
IRS stage
Stage 1	7 (29%)
Stage 2	7 (29%)
Stage 3	8 (33%)
Stage 4	2 (8%)
IRS group
Group I	7 (29%)
Group II	4 (17%)
Group III	11 (46%)
Group IV	2 (8%)
IRS risk
Low	12 (50%)
Intermediate	10 (42%)
High	2 (8%)
Primary tumor size
≥5cm	15 (63%)
<5cm	9 (37%)