NAACCR Item #3925: Sarcomatoid Features
|Source of Standard
NAACCR XML: Tumor.sarcomatoidFeatures
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.
Sarcomatoid features for Kidney is a Registry Data Collection Variable in AJCC. It was previously collected as Kidney, CS SSF #4.
|Sarcomatoid features not present/not identified
|Sarcomatoid features 1-100%
|Sarcomatoid features stated as less than 10%
|Sarcomatoid features stated as range 10%-30% present
|Sarcomatoid features stated as a range 31% to 50% present
|Sarcomatoid features stated as a range 51% to 80% present
|Sarcomatoid features stated as greater than 80%
|Sarcomatoid features present from metastatic site only AND Sarcomatoid features not present in primary site, or unknown if present
|Sarcomatoid features present, percentage unknown
|Not applicable: Not a renal cell carcinoma morphology
|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.)
|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.