Table 2.

NRAS mutation analysis in chondrosarcoma clinical samples

TotalNumber with NRAS 181 C>A (%)Number with NRAS 183 A>T (%)Total number with NRAS mutations (%)
Chondrosarcoma
Conventional central502 (4)4 (8)6 (12)
 Grade 1130 (0)0 (0)0 (0)
 Grade 2282 (7.1)1 (3.6)3 (10.7)
 Grade 390 (0)3 (33.3)3 (33.3)
Conventional peripheral170 (0)0 (0)0 (0)
Dedifferentiated chondrosarcoma100 (0)0 (0)0 (0)
Clear cell chondrosarcoma90 (0)0 (0)0 (0)
Mesenchymal chondrosarcoma30 (0)0 (0)0 (0)