From: Epidemiological characteristics of 1385 primary sacral tumors in one institution in China
Location | Chordoma (n = 316) | Giant cell tumor (n = 205) | P value |
---|---|---|---|
Region S1 or S2 or S1-2 | 5 (1.6%) | 80 (39.0%) | <0.001 |
Region S3 and below S3 | 145 (45.9%) | 11 (5.4%) | |
Associated with both two regions | 166 (52.5%) | 114 (55.6%) |