# OnCo record r0-r1-margin-pancreatic (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/r0-r1-margin-pancreatic/>
  a schema:DefinedTerm ;
  onco:kind "term" ;
  schema:identifier "r0-r1-margin-pancreatic" ;
  schema:name "R0 and R1 margins in pancreatic cancer: the 1 mm rule and standardised specimen reporting"@en ;
  schema:alternateName "1 mm rule"@en, "R1 within 1 mm"@en, "R1 direct"@en, "Royal College of Pathologists pancreatic margin"@en, "Leeds protocol"@en, "Axial slicing of pancreatoduodenectomy specimens"@en, "Circumferential resection margin of the pancreas"@en, "Posterior margin"@en, "Superior mesenteric vein groove margin"@en, "Superior mesenteric artery margin"@en ;
  schema:description "After a pancreatic cancer is removed, the pathologist checks whether cancer reaches the cut edges of the specimen. In the UK, cancer within one millimetre of an edge counts as an incomplete (R1) resection even if it does not touch it. Reported this way most operations are R1, because the tumour creeps along nerves behind the gland; cancer touching the edge carries a worse outlook."@en ;
  schema:url <https://onco.cc/terms/r0-r1-margin-pancreatic/> ;
  schema:dateModified "2026-09-24"^^xsd:date ;
  schema:sameAs <https://en.wikipedia.org/wiki/Resection_margin> ;
  schema:citation <https://doi.org/10.1002/bjs.5397>, <https://doi.org/10.1245/s10434-008-9839-8>, <https://doi.org/10.1111/j.1365-2559.2009.03376.x>, <https://doi.org/10.1097/sla.0000000000001731>, <https://doi.org/10.1097/sla.0000000000002557>, <https://doi.org/10.1016/j.lanepe.2023.100673> ;
  onco:tag "gi", "pancreatic" ;
  onco:cancers <https://onco.cc/cancers/pancreatic/>, <https://onco.cc/cancers/resectable-pdac/>, <https://onco.cc/cancers/borderline-resectable-pdac/>, <https://onco.cc/cancers/ipmn-associated-carcinoma/> ;
  onco:technologies <https://onco.cc/technologies/histopathology-ihc/> ;
  onco:terms <https://onco.cc/terms/resection-margins/>, <https://onco.cc/terms/whipple/>, <https://onco.cc/terms/distal-pancreatectomy/>, <https://onco.cc/terms/vascular-resection-pancreatic/>, <https://onco.cc/terms/neoadjuvant-versus-upfront-surgery-pancreatic/>, <https://onco.cc/terms/tnm-staging/> .