Home
General
Tumour
Enneking Staging

Enneking Staging

Purpose
- Allow prognosis
- Guide surgical management
- Guide adjunctive therapies
A compartment is a anatomically confining space which will resist tumour spread beyonds its boundaries
- Intracompartmental
- Intraosseous
- Intra fascial compartments
- Superficial to deep fascia
- Parosseous
- Extracompartmental
- Extension beyond above
  - Pelvis
  - Popliteal fossae
  - Cubital fossa
  - Axilla

Musculoskeletal Tumour Society

Grade
Site
Metastasis

Grade
- G0
  - benign
  - encapsulated or reactive bone
- Stage
  - I latent
  - II active
  - III aggressive
- GI
  - low grade malignant
    - pseudocapsule
    - microsat in reactive zone
- GII
  - high grade malignant
    - microsatellites
    - skip mets beyond reactive zone
    - permiative margin
    - Codmans triangle
Site
- TO intracapsular
- TI extracapsular but intracompartmental
- TII extracapsular & extracompartmental
- Compartment = anatomic structure forming barrier to extension bone, cartilage or capsule
Metastasis
- MO no mets
- MI skip, regional or distant mets
Skip Metatasis
- nodule of tumour separated from primary lesion by an intervening zone of normal non-reactive tissue are not the same as satellites found in the reactive zon

Benign

Stage I

Latent
G0,T0,M0

Stage II

Active
G0,T0,M0

Stage III

Aggressive
G0,T1 or II, MI or II
e.g. giant cell

Malignant

1A Low Grade Intracompartmental
1B Low Grade Extracompartmental
2A High Grade Intracompartmental
2B High Grade Extracompartmental
3 Metastasis