NAACCR Item #3925: Sarcomatoid Features
| Item # | Length | Source of Standard | Year Implemented | Version Implemented | Year Retired | Version Retired |
|---|---|---|---|---|---|---|
| 3,925 | 3 | NAACCR | 2018 | 18 |
NAACCR XML: Tumor.sarcomatoidFeatures
Description
Sarcomatoid features: present or absent and percentage refers to the observation of sheets and fascicles of malignant spindle cells in a kidney tumor which can occur across all histologic subtypes. The percentage of sarcomatoid component has been shown to correlate with cancer-specific mortality.
Rationale
Sarcomatoid features for Kidney is a Registry Data Collection Variable in AJCC. It was previously collected as Kidney, CS SSF #4.
Codes
| 000 | Sarcomatoid features not present/not identified |
| 000-100 | Sarcomatoid features 1-100% |
| R01 | Sarcomatoid features stated as less than 10% |
| R02 | Sarcomatoid features stated as range 10%-30% present |
| R03 | Sarcomatoid features stated as a range 31% to 50% present |
| R04 | Sarcomatoid features stated as a range 51% to 80% present |
| R05 | Sarcomatoid features stated as greater than 80% |
| XX5 | Sarcomatoid features present from metastatic site only AND Sarcomatoid features not present in primary site, or unknown if present |
| XX6 | Sarcomatoid features present, percentage unknown |
| XX7 | Not applicable: Not a renal cell carcinoma morphology |
| XX8 | Not applicable: Information not collected for this case (If this information is required by your standard setter, use of code XX8 may result in an edit error.) |
| XX9 | Not documented in medical record Sarcomatoid features not assessed or unknown if assessed No surgical resection of primary site is performed |
Each Site-Specific Data Item (SSDI) applies only to selected primary sites, histologies, and years of diagnosis. Depending on applicability and standard-setter requirements, SSDIs may be left blank.