Table 1


Patients27
 Female 12, male 15
 Age44.6
(10,3–77,2)
Diagnosis
 Ewing's sarcoma9
 Chondrosarcoma8
 Osteosarcoma4
 Synovial sarcoma1
 Malignant fibrous histiocytoma 1
 Metastasis-renal cell carcinoma2
 Metastasis-invasive ductal carcinoma of the breast1
 Metastasis-thyroid cancer1
Tumor stage (Enneking)
 Ib1
 IIa2
 IIb20
 IV (metastasis)4
Grading (for primary tumors)
 G11
 G25
 G317
Neoadjuvant therapy
 Polychemotherapy15
 Radiotherapy + polychemotherapy1
Adjuvant therapy
 Polychemotherapy8
 Radiotherapy3
 Radiotherapy + polychemotherapy4
Resection type (according to Enneking)
 P16
 P1-23
 P1-35
 P2-311
 P2-41
 P1+41
Regression after neoadjuvant treatment available for 4 osteosarcoma and 7 Ewing's sarcomas according to Salzer-Kuntschik
 Grade 12
 Grade 33
 Grade 44
 Grade 52
Surgical margins
 Wide20
 Marginal4
 Intralesional3
Oncological outcome
 No evidence of disease (NED)15
 Alive with disease (AWD)5
 Died of disease (DOD)7