Chordomas are rare tumors of notochordal tissue remnants and most frequently affect the sacrum and skull base.
Chordomas are rare tumors of notochordal tissue remnants and most frequently affect the sacrum and skull base.
摘要脊索瘤是来自脊索遗迹的罕见肿瘤，主要侵犯荐椎及颅底。