* indicates required field
Length: 1
Source of Standard: AJCC
Section Name: Stage/Prognostic Factors
Year Implemented: 2010
Version Implemented: 12
Record Types: A, M, C, I
XML NAACCR ID: lymphVascularInvasion
Parent XML Element: Tumor
Alternate Names:
- Lymph-vascular Invasion
Required Status:
NPCR Collect: R* - Required, when available
CoC Collect: R - Required
SEER Collect: RS - Required, site specific
CCCR Collect: R* - Required, when available
Description:
Lymphovascular invasion (LVI) indicates the presence or absence of tumor cells in lymphatic channels (not lymph nodes) or blood vessels within the primary tumor as noted microscopically by the pathologist. LVI includes lymphatic invasion, vascular invasion, and lymphovascular invasion.
Rationale:
Presence or absence of cancer cells in the lymphatic ducts or blood vessels is useful for prognosis. CAP Protocols for some disease sites will be expanded to distinguish between lymphatic and small vessel invasion only, venous (large vessel) invasion only, and BOTH lymphatic and small vessel AND venous (large vessel) invasion.
Item Data Type:
digits
Allowable Values
0-4,8,9
Codes:
0 |
Lymphovascular Invasion stated as Not Present |
|---|---|
1 |
Lymphovascular Invasion Present/Identified (NOT used for thyroid and adrenal) |
2 |
Lymphatic and small vessel invasion only (L) |
3 |
Venous (large vessel) invasion only (V) |
4 |
BOTH lymphatic and small vessel AND venous (large vessel) invasion |
8 |
Not Applicable |
9 |
Unknown/Indeterminate/not mentioned in path report |