# OnCo record second-primary-sarcoma-in-the-treated-field (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/second-primary-sarcoma-in-the-treated-field/>
  a schema:DefinedTerm ;
  onco:kind "term" ;
  schema:identifier "second-primary-sarcoma-in-the-treated-field" ;
  schema:name "Sarcoma in the radiotherapy field, and angiosarcoma of the treated breast"@en ;
  schema:alternateName "Radiation-associated sarcoma"@en, "Radiation-induced sarcoma"@en, "Angiosarcoma after breast radiotherapy"@en, "Cahan criteria"@en ;
  schema:description "A sarcoma arising in tissue that was irradiated is uncommon, appears after about seven years or more, and is recognised by where it is rather than by any test. In the treated breast it most often takes the form of angiosarcoma, and because it can look like a bruise or a cluster of reddish-blue nodules it is the one second cancer a person might reasonably mistake for something harmless."@en ;
  schema:url <https://onco.cc/terms/second-primary-sarcoma-in-the-treated-field/> ;
  schema:dateModified "2026-10-02"^^xsd:date ;
  schema:sameAs <https://en.wikipedia.org/wiki/Angiosarcoma> ;
  schema:citation <https://doi.org/10.1002/cam4.1698>, <https://doi.org/10.1007/s10549-009-0703-8>, <https://doi.org/10.1016/j.radonc.2014.10.004>, <https://doi.org/10.1016/j.radonc.2016.08.017>, <https://doi.org/10.1002/1097-0142(194805)1:1<3::aid-cncr2820010103>3.0.co;2-7> ;
  onco:tag "rejuvenation", "survivorship", "second-cancers", "sarcoma", "radiotherapy" ;
  onco:related <https://onco.cc/terms/rejuv-second-radiotherapy-dose-field-and-age/>, <https://onco.cc/terms/rejuv-second-cancers-overview/>, <https://onco.cc/terms/rejuv-second-screening-after-treatment-compared/> ;
  onco:cancers <https://onco.cc/cancers/sarcoma/>, <https://onco.cc/cancers/angiosarcoma/>, <https://onco.cc/cancers/breast-cancer/> ;
  onco:sections <https://onco.cc/fronts/rejuvenation/>, <https://onco.cc/fronts/supportive-care/>, <https://onco.cc/fronts/prevention/> ;
  onco:technologies <https://onco.cc/technologies/survivorship-care-plan/> ;
  onco:terms <https://onco.cc/terms/secondary-malignancy/>, <https://onco.cc/terms/second-cancers-after-radiotherapy/>, <https://onco.cc/terms/late-effects/> ;
  onco:bottlenecks <https://onco.cc/bottlenecks/b-rare-cancers/>, <https://onco.cc/bottlenecks/b-survivorship/>, <https://onco.cc/bottlenecks/b-early-detection/> .