| Item # | Length | Source of Standard | Year Implemented | Version Implemented | Year Retired | Version Retired |
|---|---|---|---|---|---|---|
| 1176 | 1 | NAACCR | 2026 | 26 |
Spread Through Air Spaces (STAS) is defined as micropapillary clusters, solid nests, or single cells of tumor extending beyond the edge of the tumor into the air spaces of the surrounding lung parenchyma.
Initial studies have shown that the presence of STAS is associated with an increased incidence of recurrence in tumors that have undergone limited resection (e.g., segmentectomy, wedge resection).
| 0 | Not identified |
| 1 | Present |
| 8 | Not applicable: information not collected for this case (If this item is required by your standard setter, use of code 8 will result in an edit error). |
| 9 | No surgical resection done Surgical resection done and STAS not documented in the CAP Protocol or synoptic pathology report STAS not assessed or unknown if assessed or cannot be determined |
| Blank | Must be blank if diagnosis year is before 2026 |