Pathologic M

This input is used for staging

Notes

**Distant lymph nodes** Aortic, NOS Lateral (lumbar) Para-aortic Periaortic Cervical Common iliac Inguinal, NOS Deep, NOS Node of Cloquet or Rosenmuller (highest deep inguinal) Superficial (femoral) Retroperitoneal, NOS Scalene (inferior deep cervical) Supraclavicular (transverse cervical)

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
c1 cM1 Distant metastasis CLINICAL assessment only:
Note: M1 has subcategories of M1a, M1b and M1c. Assign M1 only when there is no information available to assign one of the subcategories

Distant metastasis, NOS

Stated as M1 [NOS]
c1A cM1a Non-regional lymph node(s) CLINICAL assessment only:
Distant lymph node(s):
Aortic, NOS:
Lateral (lumbar)
Para-aortic
Periaortic
Cervical
Common iliac
Inguinal, NOS:
Deep, NOS:
Node of Cloquet or Rosenmuller (highest deep inguinal)
Superficial (femoral)
Retroperitoneal, NOS
Scalene (inferior deep cervical)
Supraclavicular (transverse cervical)

Distant lymph node(s), NOS

Stated as M1a
c1B cM1b Bone(s) CLINICAL assessment only:
Metastasis in bone(s) WITH or WITHOUT distant lymph node(s)

Stated as M1b
c1C cM1c Other site(s) CLINICAL assessment only:
Distant metastasis, other than distant lymph nodes or bone(s)

Carcinomatosis

Distant metastasis WITH or WITHOUT distant lymph nodes and/or bone(s)

Stated as M1c
p1 pM1 Distant metastasis HISTOLOGICALLY confirmed:
Note: M1 has subcategories of M1a, M1b and M1c. Assign M1 only when there is no information available to assign one of the subcategories

Distant metastasis, NOS
p1A pM1a Non-regional lymph node(s) HISTOLOGICALLY confirmed:
Distant lymph node(s):
Aortic, NOS:
Lateral (lumbar)
Para-aortic
Periaortic
Cervical
Common iliac
Inguinal, NOS:
Deep, NOS:
Node of Cloquet or Rosenmuller (highest deep inguinal)
Superficial (femoral)
Retroperitoneal, NOS
Scalene (inferior deep cervical)
Supraclavicular (transverse cervical)

Distant lymph node(s), NOS
p1B pM1b Bone(s) HISTOLOGICALLY confirmed:
Metastasis in bone(s) WITH or WITHOUT distant lymph node(s)
p1C pM1c Other site(s) HISTOLOGICALLY confirmed:
Distant metastasis, other than distant lymph nodes or bone(s)

Carcinomatosis

Distant metastasis WITH or WITHOUT distant lymph nodes and/or bone(s)
88 88 Not applicable Primary site/histology not TNM defined
In situ case but no pTis is defined by TNM
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)