# OnCo record surgical-margins-keratinocyte-cancer (term). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)". Whole corpus: https://onco.cc/api/v1/onco.nt
@prefix schema: <https://schema.org/> .
@prefix onco: <https://onco.cc/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://onco.cc/terms/surgical-margins-keratinocyte-cancer/>
  a schema:DefinedTerm ;
  onco:kind "term" ;
  schema:identifier "surgical-margins-keratinocyte-cancer" ;
  schema:name "The margin in skin cancer surgery"@en ;
  schema:alternateName "excision margin in skin cancer"@en, "4 mm margin"@en, "incomplete excision of skin cancer"@en, "peripheral margin"@en ;
  schema:description "When a skin cancer is cut out, the surgeon takes a rim of normal-looking skin around it, because the cancer reaches further than the eye can see. Four millimetres is the usual rim, and it was chosen by measuring how far tumours actually spread, not by agreement."@en ;
  schema:url <https://onco.cc/terms/surgical-margins-keratinocyte-cancer/> ;
  schema:dateModified "2026-09-25"^^xsd:date ;
  schema:citation <https://doi.org/10.1001/archderm.1987.01660270078019>, <https://doi.org/10.1016/0190-9622(92)70178-I>, <https://doi.org/10.1002/jso.70163>, <https://doi.org/10.1097/DSS.0000000000000394> ;
  onco:cancers <https://onco.cc/cancers/skin-cancer/>, <https://onco.cc/cancers/basal-cell-carcinoma/>, <https://onco.cc/cancers/cutaneous-scc/> ;
  onco:terms <https://onco.cc/terms/resection-margins/>, <https://onco.cc/terms/mohs-surgery/>, <https://onco.cc/terms/perineural-invasion/> ;
  onco:trials <https://onco.cc/trials/mohs-versus-excision-facial-bcc/>, <https://onco.cc/trials/sins-trial/> .