TNM Categories/FIGO Stages

Primary tumor (T)

• TX: Primary tumor cannot be assessed
• T0: No evidence of primary tumor
• Tis/ 0: Carcinoma in situ
• T1/I: Tumor confined to vagina
• T2/II: Tumor invades paravaginal tissues but not to pelvic wall*
• T3/III: Tumor extends to pelvic wall*
• T4/IVA: Tumor invades mucosa of the bladder or rectum and/or extends beyond the true pelvis (Bullous edema is not sufficient evidence to classify a tumor as T4.)

  * [Note: Pelvic wall is defined as muscle, facia, neurovascular structures, or skeletal portions of the bony pelvis.]

Regional lymph nodes (N)

• NX: Regional nodes cannot be assessed
• N0: No regional lymph node metastasis
• N1/IVB: Pelvic or inguinal lymph node metastasis

Distant metastasis (M)

• MX: Distant metastasis cannot be assessed
• M0: No distant metastasis
• M1/IVB: Distant metastasis

Stage 0

• Tis, N0, M0

Stage I

• T1, N0, M0

Stage II

• T2, N0, M0

Stage III

• T1, N1, M0
• T2, N1, M0
• T3, N0, M0
• T3, N1, M0

Stage IVA

• T4, any N, M0

Stage IVB

• Any T, any N, M1