staging
Last reviewed 01/2018
- stage I - single organ disease
- stage II - regional node involvement but not across the midline
- stage III - tumour across the midline
- stage IV - skeletal, soft tissue or nodal metastases
- stage IV is extended to stage IVS to group together patients with what would otherwise be group I or II, with skin, liver or bone marrow metastases, but not bone metastases