Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
TNM and clinical staging system for feline mammary tumours
| Clinical stage | Tumour diameter (T) | Regional lymph node (N) | Distant metastasis (M) |
|---|---|---|---|
| I | <2 cm (T1) | Negative (N0) | Negative (M0) |
| II | 2–3 cm (T2) | Negative (N0) | Negative (M0) |
| III | >3 cm (T3) ≤3 cm (T1–T2) | Negative or positive (N0 or N1) Positive (N1) | Negative (M0) Negative (M0) |
| IV | Any T | Any N | Positive (M1) |
Adapted from Owen 26
