Table 1.

Clinical features of human tissue specimens employed for the evaluation of VWF expression.

Case No.	Gender	Age(years)	Position	Primary tumor site	Maximum primary tumor size, cm*	Lung involvement	No. of lung nodules	VWF
1	M	19		Femur	5.9	Right lung only	1
			Primary OS					+
			Invasive OS					++
			Lung metastases					++
2	M	14		Below knee	12.3	Both lungs	5
			Primary OS					+
			Invasive OS					++
			Lung metastases					+++
3	F	34		Pelvis	8.2	Right lung only	1
			Primary OS					++
			Invasive OS					++
			Lung metastases					++
4	F	10		Below knee	13.4	Left lung only	3
			Primary OS					+
			Invasive OS					+++
			Lung metastases					++
5	M	13		Femur	9.6	Both lungs	3
			Primary OS					+
			Invasive OS					+
			Lung metastases					++
6	M	16		Humerus	10.6	Both lungs	2
			Primary OS					++
			Invasive OS					+++
			Lung metastases					+++
7	M	21		Femur	10.5	Left lung only	2
			Primary OS					+
			Invasive OS					++
			Lung metastases					++