Enneking proposed a staging system for musculoskeletal sarcomas.
Grades of malignancy:
(1) G1: low grade
(2) G2: high grade
Local Growth |
Intraosseous Tumor |
Surface Tumor |
T1 (intracompartmental) |
confined to the intramedullary portion of the bone without breaching the cortex |
confined to surface of bone |
T2 (extracompartmental) |
tumor extends beyond the cortex to invade into adjacent soft tissue or joint |
inward invasion to involve the medullary cavity, OR outward extension to involve adjacent soft tissue |
Tumor Grade |
Tumor Involvement |
Stage |
G1 |
T1 |
IA |
G1 |
T2 |
IB |
G2 |
T1 |
IIA |
G2 |
T2 |
IIB |
G1 or G2 |
metastasis |
III |
Specialty: Hematology Oncology, Surgery, general, Surgery, orthopedic
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