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e-CASES: TNM staging - Prostate - 7th edition - Prostate Cancer Staging

Dr Antoine Micheau

TNM staging - Prostate - 7th edition

Primary Tumor  (T) - Clinical

  • TX Primary tumor cannot be assessed
  • T0 No evidence of primary tumor
  • T1 Clinically inapparent tumor neither palpable nor visible by imaging
    • T1a Tumor incidental histologic finding in 5% or less of tissue resected
    • T1b Tumor incidental histologic finding in more than 5% of tissue resected
    • T1c Tumor identified by needle biopsy (for example, because of elevated PSA)
  • T2 Tumor confined within prostate1
    • T2a Tumor involves one-half of one lobe or less
    • T2b Tumor involves more than one-half of one lobe but not both lobes
    • T2c Tumor involves both lobes
  • T3 Tumor extends through the prostate capsule2
    • T3a Extracapsular extension (unilateral or bilateral)
    • T3b Tumor invades seminal vesicle(s)
  • T4 Tumor is fixed or invades adjacent structures other than seminal vesicles, such as external sphincter, rectum, bladder, levator muscles, and/or pelvic wall


Regional Lymph Nodes (N) - Clinical

  • NX  Regional lymph nodes were not assessed
  • N0  No regional lymph node metastasis
  • N1  Metastasis in regional lymph node(s)


Distant Metastasis (M)

  • M0  No distant metastasis
  • M1  Distant metastasis
  • M1a  Non regional lymph node(s)
  • M1b  Bone(s)
  • M1c  Other site(s) with or without bone disease

Sources : AJCC TNM

Diagnosis

Prostate Cancer Staging



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