Pathologic M
This input is used for staging
Notes
**Note:** Involvement of inguinal, pelvic, or external iliac lymph nodes **WITH** previous scrotal or inguinal surgery prior to presentation of the testis tumor is coded in N (regional lymph nodes) and not in M (distant metastasis). **Distant lymph nodes WITHOUT previous scrotal or inguinal surgery or UNKNOWN if previous scrotal or inguinal surgery** External iliac Inguinal nodes, NOS Deep, NOS Node of Cloquet or Rosenmuller (highest deep inguinal) Superficial (femoral) Pelvic, NOSNAACCR 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 and M1b. 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) or lung metastasis | CLINICAL assessment only: Distant lymph node(s), NOS Distant metastasis to lung Stated as M1a |
| c1B | cM1b | Distant metastasis other than non-regional lymph nodes and lung | CLINICAL assessment only: Carcinomatosis Distant metastasis to other distant sites WITH or WITHOUT metastasis to lung and/or distant lymph node(s) Stated as M1b |
| p1 | pM1 | Distant metastasis | HISTOLOGICALLY confirmed: Note: M1 has subcategories of M1a and M1b. 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) or lung metastasis | HISTOLOGICALLY confirmed: Distant lymph node(s), NOS Distant metastasis to lung |
| p1B | pM1b | Distant metastasis other than non-regional lymph nodes and lung | HISTOLOGICALLY confirmed: Carcinomatosis Distant metastasis to other distant sites WITH or WITHOUT metastasis to lung and/or distant lymph node(s) |
| 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) |