10 |
No chemotherapy prior to surgery
* Tumor limited to kidney and completely resected
- Renal capsule intact, not penetrated by tumor
- No tumor invasion of veins or lymphatics of renal sinus
- No nodal or hematogenous metastases
- No prior biopsy
- Negative margins
* Localized, NOS |
11 |
Chemotherapy prior to surgery
* Tumor limited to kidney and completely resected
- Renal capsule may be infiltrated by tumor, but tumor does not reach the outer surface
- Tumor may protrude or bulge into the pelvic system or ureter, but does not infiltrate
- Vessels of renal sinus not involved |
20 |
No chemotherapy prior to surgery
* Tumor extends beyond kidney but completely resected
- Tumor penetrates renal capsule
- Tumor in lymphatics or veins of renal sinus
- Tumor in renal vein with margin not involved
* AND
- No nodal or hematogenous metastases AND
- Negative margins |
21 |
Chemotherapy prior to surgery
* Tumor extends beyond kidney but completely resected
- Tumor penetrates renal capsule into perirenal fat
- Tumor infiltrates the renal sinus and/or invades blood and lymphatic vessels outside renal parenchyma but is completely resected
- Tumor infiltrates adjacent organs or vena cava but is completely resected |
30 |
No chemotherapy prior to surgery
* Residual tumor or nonhaematogenous metastases confined to abdomen
- Involved abdominal nodes
- Peritoneal contamination or tumor implant
- Tumor spillage of any degree occurring before or during surgery
- Gross residual tumor in abdomen
- Biopsy of tumor (including fine-needle aspiration) prior to removal of kidney
- Resection margins involved by tumor |
31 |
Chemotherapy prior to surgery
* Incomplete resection of the tumor (gross or microscopic extension beyond the resection margins)
- Involved abdominal lymph nodes, including necrotic tumor or chemotherapy-induced changes
- Tumor rupture before or intraoperatively
- Tumor has penetrated the peritoneal surface
- Tumor thrombi present at resection margins
- Surgical biopsy prior to resection (does not include needle biopsy |
40 |
Stage IV
* Hematogenous metastases or spread beyond abdomen at diagnosis |
88 |
Not applicable: Information not collected for this case
(If this information is required by your standard setter, use of code 88 may result in an edit error.) |
99 |
Not documented in medical record
No surgical resection performed and patient has no metastatic disease
National Wilms Tumor Study Group (NWTSG) staging not stated |
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N/A - Diagnosis year is prior to 2023 |