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Other tissue received

Not applicable Adrenal Liver Lung Other Not specified

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Specimen Weight (g)

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Tumor Size (cm)

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+ Additional dimensions of multiple tumors (if necessary)

Greatest dimension tumor #2 Greatest dimension tumor #3 Other

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Tumor Focality

Unifocal Multifocal Cannot be determined

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Tumor Extent (viable tumor only) (select all that apply)

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+ Nephrogenic Rests About nephrogenic rests

No nephrogenic rests identified Intralobar nephrogenic rests present Perilobar, diffuse/hyperplastic rests present Perilobar, multifocal rests present Perilobar, focal rests present Nephrogenic rests, unclassified Cannot be determined

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Margins

Cannot be assessed Uninvolved by viable and non-viable tumor Involved by tumor

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Posttherapy Histologic Classification (select all that apply)

No known preoperative therapy (not applicable) Low risk (no viable Wilms tumor present other than scattered nephroblastic tubules that may represent residual nephrogenic rest) Intermediate risk, Viable tumor present comprising <33% of mass, regardless of histology Intermediate risk, Viable tumor present comprising >33% of mass, with blastemal histology present in <66% of viable tumor High risk (viable tumor >33% of mass with blastemal histology present in >66% of viable tumor) Cannot be determined

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Distant Metastasis

Not applicable Present

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Children’s Oncology Group Staging System

Not applicable (nephrogenic rests only) Local Stage I: Tumor limited to kidney and completely resected Local Stage II: Tumor (viable) extends through the renal capsule or involves the perirenal fat or adrenal gland Local Stage II: Tumor (viable) involvement of extrarenal or renal sinus lymph-vascular spaces present Local Stage II: Tumor (viable) involves renal vein but has not been transected and is not attached to vein wall at resection margin Local Stage II: Tumor (viable) infiltrates the wall of the renal pelvis or the ureter Local Stage II: Tumor (viable) more than minimally involves the renal sinus soft tissue Local Stage III: Tumor (viable or non-viable) present at margin(s) of resection Local Stage III: Tumor (viable or non-viable) rupture identified Local Stage III: Tumor spill (viable or non-viable) before or during surgery identified Local Stage III: Piecemeal excision of tumor viable or non-viable tumor (removal of tumor in more than 1 piece) Local Stage III: Metastatic tumor (viable or non-viable) in regional lymph node(s) identified Local Stage III: History of renal tumor biopsy before definitive surgery (pretherapy specimens only) Local Stage III: Tumor implants (viable or non-viable) present anywhere in the abdomen Stage IV: Metastatic disease Stage V: Bilateral renal involvement at diagnosis About tumor staging

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Check here if any lymph nodes submitted?