OnCo
termsTerm

Wide local excision

aka wide excision, excision margins, local excision, re-excision

Cutting out a tumour together with a measured rim of normal-looking tissue around it, so that microscopic spread at the edge is removed too.

The standard treatment for primary melanoma after diagnostic biopsy: margins of 0.5 cm for in situ, 1 cm for tumours ≤1 mm and 2 cm for thicker tumours (MSLT, MelMarT trials). The same principle applies to soft-tissue sarcomas, skin cancers, breast lumpectomy and vulval cancer. Wider is not better beyond the evidence-based margin; what matters is that the pathologist finds the edges clear (R0).

Category
Procedures

Connected

7top