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Term Description

The residual tumor, or R, classification indicates the absence (R0) or presence (R1-R2) of residual tumor after treatment (e.g. surgical treatment alone, radiotherapy, chemotherapy, or multimodal therapy). It is used as an adjunct classification to the TNM system developed and maintained by the American Joint Committee on Cancer (AJCC). The R classification reflects the effectiveness of the primary treatment, is used when designing clinical management after treatment, and is a strong indicator of prognosis if applied in a consistent manner. PMID: 12015777 This term was created for, but not limited in use to, the Colorectal Cancer Structured Reporting Protocol (2nd Edition, 2012) developed by the Royal College of Pathologists of Australasia (RCPA).

LOINC Names Get Info

Fully-Specified Name
Residual tumor classification:Type:Pt:Cancer specimen:Ord:
Long Common Name
Residual tumor classification [Type] in Cancer specimen
Short Name
Residual tumor classification Ca spec Ql
Display Name
Residual tumor classification Ql (Cancer specimen)
Consumer Name Alpha Get Info
Residual tumor classification, Cancer specimen

Part Model Get Info

  • Component
    Residual tumor classification
    LP222095-4
    • Analyte
      Residual tumor classification
      LP222095-4
      • Component Numerator
        Residual tumor classification
        LP222095-4
        • Component Numerator Core
          Residual tumor classification
          LP222095-4
        • Component Numerator Core Suffix
          NULL
           
      • Component Denominator
        NULL
         
        • Component Denominator Core
          NULL
           
        • Component Denominator Core Suffix
          NULL
           
    • Challenge
      NULL
       
    • Adjustment
      NULL
       
    • Count
      NULL
       
  • Property
    Type
    LP6886-8
  • Time
    Pt
    LP6960-1
  • System
    Cancer specimen
    LP247830-5
    • System Core
      Cancer specimen
      LP247830-5
    • Super System
      NULL
       
  • Scale
    Ord
    LP7751-3
  • Method
    NULL
     

Preferred Answer List: LL4078-3

Source: The Royal College of Pathologists of Australasia
AnswerCodeScoreAnswer ID
R0

Complete resection, margins histologically negative, no residual tumor left after resection (primary tumor, regional nodes)

LA26542-3
R1

Incomplete resection, margins histologically involved, microscopic tumor remains after resection of gross disease (primary tumor, regional nodes

LA26543-1
R2

Incomplete resection, margins macroscopically involved or gross disease remains after subtotal resection (eg primary tumor, regional nodes, or liver metastasis)

LA26544-9

Basic Attributes

Class
PATH
Type
Laboratory
First Released
Version 2.58
Last Updated
Version 2.71 (MIN)
Change Reason
Updated System from "Cancer.XXX" to clarify that the test is performed on a cancer specimen.
Order vs. Observation
Observation

Language Variants Get Info

TagLanguageTranslation
cs-CZCzech (Czechia)Nádor reziduální klasifikace:Typ:Časový bod:Vzorek karcinomu:Ordinální:
el-GRGreek (Greece)Ταξινόμηση υπολειμματικού όγκου:Type:Pt:Δείγμα καρκίνου:Ord:
Synonyms: Ord PATH Pt Type Δείγμα Δείγμα καρκίνου Καρκίνος Ταξινόμηση υπολειμματικού όγκου Υπολειμματικός όγκος
es-ESSpanish (Spain)Clasificación del tumor residual:Tipo:Punto temporal:Muestra de cancer:Ord:
es-MXSpanish (Mexico)Clasificación de tumores residuales:Tipo:Punto temporal:Espécimen de cáncer:Ordinal:
it-ITItalian (Italy)Classificazione tumore residuale:Tipo:Pt:Campione tumore:Ord:
Synonyms: Campione di tumore Neoplasia maligna Patologia Punto nel tempo (episodio)
zh-CNChinese (China)残存肿瘤分类:类型:时间点:癌标本:序数型:
Synonyms: 供检查用的材料;待检物;待试验物;样品;样本;试料;试样 依次型;分类顺序型;定性的;序数型（或称等级型）;性质上的;有序型;有序性分类应答;有序性分类结果;秩次型;等级型;筛查;顺序型 受检物 型 时刻;随机;随意;瞬间 样品 样本 残存（残留、残余）肿瘤分类（类别、类型） 癌 癌（癌症、癌变）标本（样本、样品、试样） 肿瘤术后残留;残存肿瘤;残留肿瘤;肿瘤残留;肿瘤残余 试样

LOINC Terminology Service (API) using HL7® FHIR® Get Info

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=84892-9