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Table 1 Summary of the patients characteristics, diagnostic workup, and treatment modalities

From: Sarcoma of unknown primary: myth or reality?

Patients characteristics (n)

 

Number of patients (%)

Gender (n = 20)

Male

10 (50.0%)

Female

10 (50.0%)

Age (n = 20)

Median

17.5 years

Range

3–83 years

Pathology (n = 26)

Alveolar rhabdomyosarcoma

7 (26.9%)

Rhabdomyosarcoma not otherwise specified

7 (26.9%)

Sarcoma not otherwise specified

3 (11.5%)

Endometrial stromal sarcoma

2 (7.7%)

Othersa

7 (26.9%)

More than one metastatic sites (n = 17)

 

11 (64.7%)

Diagnostic workup

MRI (n = 11)

2 (18.2%)

Bone scan (n = 11)

5 (45.5%)

PET/CT scan (n = 11)

3 (27.3%)

Treatment modalities reported

Surgery (n = 4)

2 (50.0%)

Radiotherapy (n = 4)

1 (25.0%)

Chemotherapy (n = 17)

15 (88.2%)

  1. aOthers include dermatofibrosarcoma protuberans (n = 1), desmoplastic small round cell tumor (n = 1), epithelioid angiosarcoma (n = 1), epithelioid sarcoma (n = 1), Ewing’s sarcoma (n = 1), rhabdomysarcoma undifferentiated (n = 1), spindle cell sarcoma (n=1)
  2. n denotes the number of patients with available information