NAACCR Item #3961: Clinical Margin Width
| Item # | Length | Source of Standard | Section Name | Year Implemented | Version Implemented | XML NAACCR ID | Parent XML Element |
|---|---|---|---|---|---|---|---|
| 3961 | 4 | CoC | Stage/Prognostic Factors | 2023 | 2023 | clinicalMarginWidth | Tumor |
Required Status:
NPCR Collect: No recommendation
CoC Collect: Required, site specific
SEER Collect: Required, site specific
CCCR Collect: No recommendation
Description
Clinical Margin Width describes the margins from a wide excision for a melanoma primary. The margin width is measured by the surgeon prior to the procedure. The measurement is taken, in centimeters, from the edge of the lesion or the prior excision scar to the peripheral margin of the specimen.
Rationale
Clinical margin width for wide local excision of a melanoma is based on the original Breslow thickness of the primary tumor, as indicated on the initial biopsy pathology report.
Allowable Values
0.1, 0.2-9.9, XX.1, XX.8