Table 1.

Clinical Summary

Case	Age (years)	Sex	Primary Site	Size (cm)	Presentation	Treatment	Status at last follow-up	Follow-up period (months)
1	67	Male	Right shoulder infiltrative mass involving soft tissue, bone and lung	7.8	Infiltrative shoulder mass	Marginal resection, subsequent wide resection (close margin) of local recurrence, gemcitabine/docetaxel × 3 months-->pazopanib × 2 months-->doxorubicin/olaratumab × 7 cycles-->pebrolizumab--->bevacizumab	DOD (distant lung, spine, pelvic metastases)	36
2	63	Female	Left superoposterior chest wall deep to trapezius muscle	7.0	Left shoulder mass with gradual increase in size over 1 year	Radical resection	ANED	9
3	75	Female	Left posterior thigh	9.1	Cough and fatigue for 3 months. CT scan reveals lung and mediastinal masses	Radiation to lung, doxil × 3 months, pazopanib	DOD (distant lung, pleural/mediastinal metastases)	5

ANED: alive with no evidence of disease; DOD: dead of disease.