* indicates required field
Length: 1
Source of Standard: NAACCR
Section Name: Stage/Prognostic Factors
Year Implemented: 2026
Version Implemented: 26
Record Types: I, M, C, A
XML NAACCR ID: spreadThroughAirSpacesStas
Parent XML Element: Tumor
Required Status:
NPCR Collect: . - No recommendations
CoC Collect: RS - Required, site specific
SEER Collect: RC - Collected by SEER from CoC-accredited hospitals
CCCR Collect: . - No recommendations
Description:
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.
Rationale:
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).
Item Data Type:
numeric
Allowable Values
0, 1, 8, 9, Blank
Codes:
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 |