Response Options to "Tumor location and Extent"
___ Epiphysis or apophysis
___ Metaphysis
___ Diaphysis
___ Cortical
___ Medullary cavity
___ Surface
___ Tumor involves joint
___ Tumor extension into soft tissue
___ Cannot be determined
Response Options to "Histologic Grade"
___ G1: Well differentiated, low grade
___ G2: Moderately differentiated, high grade
___ G3: Poorly differentiated, high grade
___ GX: Cannot be assessed
___ Not applicable