Preoperative Factors Associated with Infiltrative Histologic Growth Patterns in Extremity Soft Tissue Sarcoma

Table 2

Comparison of preoperative characteristics by histological growth pattern.

	Expansile	Infiltrative	value
Mean age (years, )	48 (20)	52 (20)	0.14
Gender ()			0.52
Female	30	33
Male	43	38
Preoperative radiation therapy ()			0.49
Done	0	1
Not done	73	70
Preoperative chemotherapy ()			0.53
Done	4	6
Not done	69	65
Depth ()			0.03
Superficial	6	15
Deep	67	56
Size (cm, SD)	7.7 (5.1)	7.6 (7.5)	0.91
Compartmental status ()			0.52
Intracompartmental	48	43
Extracompartmental	25	28
Presentation status ()			0.20
Fresh	56	45
Recurred	8	14
Unplanned excision	9	12
Peritumoral edema ()			0.65
Absent	52	53
Present	21	18
Tumor border on MRI ()			0.01
Pushing	37	20
Infiltrative	36	51
FNCLCC grade ()			0.83
1	13	10
2	27	27
3	33	34
Surgical margin ()			0.32
Wide	66	59
Marginal	7	11
Intralesional	0	1
Pathologic margin ()			0.35
Negative	68	63
Positive	5	8
Local recurrence ()			0.37
No	59	53
Yes	14	18
Metastasis ()			0.56
No	46	48
Yes	27	23

, standard deviation.