Collaborative Stage Data Set - Revised 05/27/2013 FINAL

MelanomaChoroid

CS Site-Specific Factor 13
Microvascular Density (MVD)

Note 1: Microvascular density (MVD) is the number of immunopositive elements labeled with markers for vascular endothelial cells in areas of densest vascularization. The value is expressed as an integer, number of vessels per 0.3 square millimeter (mm).
Note 2: 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
000-500	Number of vessels per 0.3 square millimeter (mm)
988	Not applicable: Information not collected for this case (If this information is required by your standard setter, use of code 988 may result in an edit error.)
991	Lowest quartile for laboratory
992	Second quartile for laboratory
993	Third quartile for laboratory
994	Highest quartile for laboratory
997	Test performed, unknown results
998	Test not done (test not ordered and not performed)
999	Unknown or no information Not documented in patient record