Table 1.

Clinical characteristics of the OS patients

Patient	Gender	Age	P site	M site	H-Grade	TNM	Cancer stage
Case 1	M	22	Distal Femur	Lung	G2	T1NxM1a	IV-A
Case 2	F	66	Distal Femur	Lung	G3	T1N1M1a	IV-A
Case 3	F	59	Proximal Tibia	Lung	G1	T1NxM1a	IV-A
Case 4	M	64	Distal Femur	Lung, Brain	G3	T1N1M1b	IV-B
Case 5	M	17	Distal Femur	Lung	G3	T1N1M1a	IV-A

Abbreviations: P: primary; M: metastasis; H-Grade: Histology Grade; TNM: T: Tumor; N: Lymph Node; M: Metastasis.