Version 2.79

Part Description

LP17751-6   Cells.CD20
B-lymphocyte antigen CD20 or CD20 is an activated-glycosylated phosphoprotein on the surface of all B-cells starting at the pro-B phase (CD45R+, CD117+) and increases in concentration until maturity. In humans CD20 is encoded by the MS4A1 gene. This gene encodes a member of the membrane-spanning 4A gene family. Members of this nascent protein family are characterized by common structural features and similar intron/exon splice boundaries and display unique expression patterns among hematopoietic cells and nonlymphoid tissues. This gene encodes a B-lymphocyte surface molecule that plays a role in the development and differentiation of B-cells into plasma cells. CD20 is the target of the monoclonal antibodies (mAb) rituximab, Ibritumomab tiuxetan, and tositumomab, that are active agents in the treatment of all B cell lymphomas and leukemias. The anti-CD20 mAB Ofatumumab (Genmab) was approved by FDA in Oct 2009 for Chronic lymphocytic leukemia. Copyright Text is available under the Creative Commons Attribution/Share-Alike License. See http://creativecommons.org/licenses/by-sa/3.0/ for details. Source: Wikipedia , CD20

Fully-Specified Name

Component
Cells.CD20/Cells
Property
NFr
Time
Pt
System
XXX
Scale
Qn
Method

Additional Names

Long Common Name
CD20 cells/cells in Specimen
Short Name
CD20 Cells NFr Spec
Display Name
CD20 cells/cells (Specimen)
Consumer Name Alpha Get Info
CD20 cells/cells, Specimen

Basic Attributes

Class
CELLMARK
Type
Laboratory
First Released
Version 1.0m
Last Updated
Version 2.79 (NAM)
Change Reason
Release 2.79: COMPONENT: Triggered by Coll w SCT: This is a specific fraction case where the denominator is percentage or /100. Because the logic is that the percentage piece is captured by Property: NFr (Numeric Fraction), and by Unit: %, therefore, it is redundant to include "100" in the component;
Order vs. Observation
Observation
Common Test Rank Get Info
3227

Member of these Panels

LOINC Long Common Name
45270-6 Acute leukemia panel - Specimen by Flow cytometry (FC)
45269-8 Chronic leukemia panel - Specimen by Flow cytometry (FC)
54227-4 Lymphoma - acute screen panel - Specimen by Flow cytometry (FC)
54228-2 Lymphoma - CLL screen panel - Specimen by Flow cytometry (FC)
54226-6 Lymphoma panel - Specimen by Flow cytometry (FC)

Language Variants Get Info

Tag Language Translation
de-DE German (Germany) Zellen.CD20/Zellen:Anzahl pro Fraktion:Zeitpunkt:XXX:Quantitativ:
el-GR Greek (Greece) Κύτταρα.CD20/κύτταρα:NFr:Pt:XXX:Qn:
Synonyms: NFr
es-MX Spanish (Mexico) Cells.CD20 / 100 células:Fracción numérica:Punto temporal:XXX:Cuantitativo:
es-AR Spanish (Argentina) células.células CD20/100 células:fracción de un número:punto en el tiempo:XXX:cuantitativo:
es-ES Spanish (Spain) Células CD20+/células:Fracción numérica:Punto temporal:XXX:Qn:
Synonyms: Cuantitativo
fr-CA French (Canada) Cellules.CD20/Cellules:Fraction numérique:Temps ponctuel:XXX:Quantitatif:
fr-FR French (France) CD20/100 cellules:Fraction de nombres:Ponctuel:Milieux divers:Numérique:
it-IT Italian (Italy) Cellule.CD20/cellule:NFr:Pt:XXX:Qn:
Synonyms: Cellule CD20 Frazione numerica Modelli di superficie cellulare Punto nel tempo (episodio)
ko-KR Korean (Korea, Republic Of) 세포.CD20/100 세포:숫자분획:검사시점:XXX:정량:
nl-NL Dutch (Netherlands) cellen.CD20/cellen:getalsfractie:moment:XXX:kwantitatief:
pt-BR Portuguese (Brazil) Células.CD20/100 células:NFr:Pt:XXX:Qn:
Synonyms: ; CD20 Cells; Cell; Cellularity; Leu-16; B-1; B1; Leu16; Bp35; Gated cells; Fr; Number fraction; Percent; Point in time; Random; Misc; Miscellaneous; Unspecified; Other; Quantitative; QNT; Quant; Quan; CELL MARKERS
ru-RU Russian (Russian Federation) Клетки.CD20/клетки:КолДоля:ТчкВрм:XXX:Колич:
Synonyms: Количественный Количество отношение Точка во времени;Момент
tr-TR Turkish (Turkey) Hücreler.CD20/Hücreler:SayFr:Zmlı:XXX:Kant:
zh-CN Chinese (China) 细胞.CD20/细胞:计数型分数:时间点:XXX:定量型:
Synonyms: B1;B-1;Bp35;Leu16;Leu-16 CD20细胞 不明的;其他;将在相应消息内其他部分之中加以详细说明;未作详细说明的;未作说明的;未做说明的标本;未加规定的;未加说明的标本;杂项 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 数量型分数;数量或计数型分数;数量型分数或计数型分数 时刻;随机;随意;瞬间 细胞含量;细胞性;细胞性质;细胞构成;细胞类 细胞标志物

Example Units

Unit Source
% Example UCUM Units
% REGENSTRIEF

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

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=20595-5