Table 1: Histopathological data of Libya and Egyptian cases
Case No.	Diagnosis	Histological Variant	Case No.	Diagnosis	Histological Variant
Case No.	Libyan cases	Histological Variant	Case No.	Egyptian cases	Histological Variant
1	Osteosarcoma	Osteoblastic	1	Osteosarcoma	Osteoblastic
2	Osteosarcoma	Osteoblastic	2	Osteosarcoma	Osteoblastic
3	Osteosarcoma	Osteoblastic	3	Osteosarcoma	Osteoblastic
4	Osteosarcoma	Osteoblastic	4	Osteosarcoma	Osteoblastic
5	Osteosarcoma	Osteoblastic	5	Osteosarcoma	Osteoblastic
6	Osteosarcoma	Osteoblastic	6	Osteosarcoma	Osteoblastic
7	Osteosarcoma	Osteoblastic	7	Osteosarcoma	Osteoblastic
8	Osteosarcoma	Osteoblastic	8	Osteosarcoma	Osteoblastic
9	Osteosarcoma	Osteoblastic	9	Osteosarcoma	Osteoblastic
10	Osteosarcoma	Osteoblastic	10	Osteosarcoma	Osteoblastic
11	Osteosarcoma	Osteoblastic	11	Osteosarcoma	Osteoblastic
12	Osteosarcoma	Osteoblastic	12	Osteosarcoma	Chondroblastic
13	Osteosarcoma	Osteoblastic	13	Osteosarcoma	Chondroblastic
14	Osteosarcoma	Chondroblastic	14	Osteosarcoma	Chondroblastic
15	Osteosarcoma	Chondroblastic	15	Osteosarcoma	Chondroblastic
16	Osteosarcoma	……………..	16	Osteosarcoma	Fibroblastic
17	Osteosarcoma	……………..	17	Osteosarcoma	Fibroblastic
18	Osteosarcoma	……………..	18	Osteosarcoma	Fibroblastic
19	Osteosarcoma	……………..	19	Osteosarcoma	……………..
20	Osteosarcoma	……………..	20	Osteosarcoma	……………..