Pathologic M

This input is used for staging

Notes

**Distant lymph nodes** Cervical, NOS Contralateral/bilateral axillary and/or internal mammary Other than above

NAACCR Item

NAACCR #900
Pathologic M Pathologic M Display Description Registrar Notes
c0 cM0 No distant metastasis Unknown; distant metastasis not stated
Distant metastasis cannot be assessed
Not documented in patient record
c0I+ cM0(i+) Isolated tumor cells found in bone marrow No clinical or radiographic evidence of distant metastasis, BUT
deposits of molecularly or microscopically detected tumor cells in circulating blood, bone marrow or other non-regional nodal tissue that are 0.2 millimeters (mm) or less in a patient without symptoms or signs of metastasis

Stated as M0(i+)
c1 cM1 Distant metastasis CLINICAL assessment only:
Distant lymph node(s), NOS

Further contiguous extension:
Skin over:
Axilla
Contralateral (opposite) breast
Sternum
Upper abdomen

Metastasis:
Adrenal (suprarenal) gland
Bone, other than adjacent rib
Contralateral (opposite) breast - if stated as metastatic
Lung
Ovary
Satellite nodule(s) in skin other than primary breast

Carcinomatosis

Distant metastasis WITH or WITHOUT distant lymph nodes

Distant metastasis, NOS

Stated as M1
p1 pM1 Distant metastasis HISTOLOGICALLY confirmed:
Distant lymph node(s), NOS

Further contiguous extension:
Skin over:
Axilla
Contralateral (opposite) breast
Sternum
Upper abdomen

Metastasis:
Adrenal (suprarenal) gland
Bone, other than adjacent rib
Contralateral (opposite) breast - if stated as metastatic
Lung
Ovary
Satellite nodule(s) in skin other than primary breast

Carcinomatosis

Distant metastasis WITH or WITHOUT distant lymph nodes

Distant metastasis, NOS
88 88 Not applicable Primary site/histology not TNM defined
Death certificate only (DCO) case
<BLANK> BLANK See Registrar Notes Pathologic classification criteria not met
No pathologic workup for T and N categories and no pathologic evidence of metastasis
Only Pathologic Stage Group documented (no T, N, or M information available)