Pathologic Staging

CAP Approved Pediatric • PNET / Ewing Sarcoma 3.1.0.2

TNM Descriptors (required only if applicable) (select all that apply)

___ m (multiple primary tumors)

___ r (recurrent)

___ y (posttreatment)

Primary Tumor (pT)

For Primary Osseous Tumors

___ pTX:        Primary tumor cannot be assessed

___ pT0:        No evidence of primary tumor

___ pT1:        Tumor 8 cm or less in greatest dimension

___ pT2:        Tumor more than 8 cm in greatest dimension

___ pT3:        Discontinuous tumors in the primary bone site

For Primary Extraosseous Tumors

___ pTX:        Primary tumor cannot be assessed

___ pT0:        No evidence of primary tumor

___ pT1a:        Tumor 5 cm or less in greatest dimension, superficial tumor

___ pT1b:        Tumor 5 cm or less in greatest dimension, deep tumor

___ pT2a:        Tumor more than 5 cm in greatest dimension, superficial tumor

___ pT2b:        Tumor more than 5 cm in greatest dimension, deep tumor

Regional Lymph Nodes (pN)

___ pNX:         Regional lymph nodes cannot be assessed

___ pN0:         No regional lymph node metastases

___ pN1:        Regional lymph node metastasis

Distant Metastasis (pM)

For Primary Osseous Tumors

___ Not applicable

___ pM1a: Lung

___ pM1b: Metastasis involving distant sites other than lung

For Primary Extraosseous Tumors

___ Not applicable

___ pM1: Distant metastasis

Pediatric

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