Organization |
Field Name |
ID |
Required |
---|---|---|---|
KCR |
Microvascular Density |
34088 |
yes |
SEER |
Microvascular Density (MVD) |
3891 |
yes |
Note 1 Physician statement of microvascular density (MVD) can be used to code this data item when no other information is available.
Note 2 MVD is independently associated with metastatic risk. The number of immunopositive elements is labeled with a marker for vascular endothelial cells (e.g., CD34 epitope, CD31 epitope, factor VIII-related antigen) and counted from area of densest vascularization (typical field area, 0.3 mm2 squared). Higher counts are associated with shorter survival.
Note 3 Record the results as expressed on the laboratory test. Record the information based on quartiles for laboratory standards if this is the only expression of results.
Code |
Description |
---|---|
00 |
No vessels involved |
01-99 |
01-99 vessels per 0.3 square millimeter (mm2) |
X1 |
Greater than or equal to 100 vessels per 0.3 square millimeter (mm2) |
X2 |
Lowest quartile for laboratory |
X3 |
Second quartile for laboratory |
X4 |
Third quartile for laboratory |
X5 |
Highest quartile for laboratory |
X7 |
Test ordered, results not in chart |
X8 |
Not applicable: Information not collected for this case |
X9 |
Not documented in medical record |