Sarcomatoid Features
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. The presence of sarcomatoid or spindle cell features in a kidney tumor is a strong adverse prognostic factor. There is a specific ICD-O morphology code for renal cell carcinoma, sarcomatoid or spindle cell (8318/3), but this data item documents any sarcomatoid or spindle cell features in any renal cell cancer. * Note: This data item applies to carcinomas only; rare sarcomas of the kidney should not be coded in this field * Code the percentage of sarcomatoid features documented anywhere in the pathology reportNotes
**Note 1:** **Physician Staging** * Physician statement of Sarcomatoid Features (spindle cell features) can be used to code this data item when no other information is available. **Note 2:** **Criteria for coding** * Surgical resection of primary site must be done * If no surgical resection of primary site, code unknown (code 9) * Do not use imaging findings to code this data item. **Note 3:** **Sarcomatoid morphology/features** * Sarcomatoid morphology may be manifested by any renal cell carcinoma. The presence of sarcomatoid component in a renal cell carcinoma may be prognostically important. * Sarcomatoid features is mostly seen with renal cell carcinoma (all variants); however, if it’s seen with other carcinoma histologies, it can be coded.| Code | Description |
|---|---|
| 000 | Sarcomatoid features not present/not identified |
| 001-100 | 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, or unknown if present, in primary site |
| 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 |