Table 2.

Patient outcome and follow-up.

Pt	Age at Dx	Histology of primary	Location of primary	Presenting stage	Failure in IORT field	IORT dose (Gy)	Site of EBRT	Surgical margins	Site of first progression after IORT	Status at last FU	FU (months)
1	86	Malignant fibrous histiocytoma	Buttock	III	Yes	12.5	Buttock	−	Buttock	Dead	3
2	68	Malignant fibrous histiocytoma	Thigh	III	No	12	Thigh	−	Acetabulum	AWD	23
3	18	Synovial sarcoma	Knee	II	No	15	Knee	−	Lungs	AWD	15
4	39	Synovial sarcoma, recurrent	Thigh	IV	No	15	Thigh	−	Lungs	AWD	17
5	9	Alveolar rhabdomyosarcoma	Calf	III	No	12	None	−	RP LN	AWD	53
6	54	Angiosarcoma	Thigh	II	No	15	Thigh	+	Lungs	AWD	24
7	9	Ewing sarcoma	Prox add	IV	No	12.5	Prox add	+	Lungs	Dead	5
8	18	Ewing sarcoma	Buttock	IV	No	12.5	Buttock	+	Lungs	Dead	41
9	8	Monomorphic synovial sarcoma	Forearm	II	No	12.5	Forearm	+	None	NED	39
10	76	Malignant fibrous histiocytoma	Groin	III	No	15	Groin/add	−	None	NED	15
11	59	Malignant fibrous histiocytoma	Forearm	III	No	12.5	Forearm	+	None	NED	32
12	31	Angiomyxoma	Thigh	I	No	15	None	−	None	NED	37
13	20	Alveolar rhabdomyosarcoma	Forearm	III	No	12.5	Forearm	−	None	NED	17
14	21	Synovial sarcoma	Shoulder	II	No	12.5	None	−	None	NED	11
15	46	Synovial sarcoma	Hand	III	No	12.5	Hand	+	None	NED	34
16	37	Synovial sarcoma	Popl fossa	II	No	12.5	Popl fossa	−	None	NED	25
17	38	Leiomyosarcoma	Groin	II	No	12.5	None	−	None	Dead	23

Abbreviations: Pt = patient number; Dx = diagnosis; IORT = intraoperative radiation therapy; EBRT = external beam radiation therapy; FU = follow-up; prox = proximal; add = adductor; popl = popliteal; RP = retroperitoneal; LN = lymph node; AWD = alive with disease; NED = no evidence of disease.

Note: Patients 1–2 failed locoregionally and patients 3–8 failed distantly.