NAACCR Item #3925: Sarcomatoid Features
|Item #||Length||Source of Standard||Year Implemented||Version Implemented||Year Retired||Version Retired|
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.
|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.