RT Journal Article SR Electronic T1 Primary extraskeletal mesenchymal chondrosarcoma arising from the iliac vein JF Saudi Medical Journal JO Saudi Med J FD Prince Sultan Military Medical City SP 107 OP 107 VO 39 IS 1 A1 Al-Mendalawi, Mahmood D. YR 2018 UL http://smj.org.sa/content/39/1/107.abstract AB