NAACCR Item #3817: Breslow Tumor Thickness
| Item # | Length | Source of Standard | Year Implemented | Version Implemented | Year Retired | Version Retired |
|---|---|---|---|---|---|---|
| 3,817 | 4 | NAACCR | 2018 | 18 |
NAACCR XML: Tumor.breslowTumorThickness
Description
Breslow Tumor Thickness, the measurement of the thickness of a melanoma as defined by Dr. Alexander Breslow, is a prognostic factor for Melanoma of the Skin.
Rationale
Breslow Tumor Thickness is a Registry Data Collection Variable in AJCC. It was previously collected as Melanoma Skin, CS SSF# 1.
Codes
| 0.0 | No mass/tumor found |
| 0.1 | Greater than 0.0 and less than or equal to 0.1 |
| 0.2-99.9 | 0.2 - 99.9 millimeters |
| XX.1 | 100 millimeters or larger |
| A0.1-A9.9 | Stated as "at least" some measured value of 0.1 to 9.9 |
| AX.0 | Stated as greater than 9.9 mm |
| XX.8 | Not applicable: Information not collected for this schema (If this item is required by your standard setter, use of code XX.8 will result in an edit error) |
| XX.9 | Not documented in medical record Microinvasion; microscopic focus or foci only and no depth given Cannot be determined by pathologist In situ melanoma Breslow Tumor Thickness not assessed or unknown if assessed |
Each Site-Specific Data Item (SSDI) applies only to selected primary sites, histologies, and years of diagnosis. Depending on applicability and standard-setter requirements, SSDIs may be left blank.