Version 2.80

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.CD19
Property
NFr
Time
Pt
System
Bld
Scale
Qn
Method

Additional Names

Long Common Name
CD20 cells/Cells.CD19 in Blood
Short Name
CD20 Cells/Cells.CD19 NFr Bld
Display Name
CD20 cells/Cells.CD19 (Bld)
Consumer Name Alpha Get Info
CD20 cells/Cells.CD19, Blood

Basic Attributes

Class
CELLMARK
Type
Laboratory
First Released
Version 2.68
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
5306

Language Variants Get Info

Tag Language Translation
es-MX Spanish (Mexico) Células CD20 / 100 células CD19:Fracción numérica:Punto temporal:Sangre:Cuantitativo:
es-ES Spanish (Spain) Células CD20+/Porcentaje de células CD19:Fracción numérica:Punto temporal:Sangre:Qn:
Synonyms: Cuantitativo
fr-FR French (France) CD20/100 cellules CD19:Fraction de nombres:Ponctuel:Sang:Numérique:
it-IT Italian (Italy) Cellule.CD20/Cellule.CD19:NFr:Pt:Sangue:Qn:
Synonyms: Cellule CD19 Cellule CD20 Cellule.CD19 Frazione numerica Modelli di superficie cellulare Punto nel tempo (episodio) Sangue
nl-NL Dutch (Netherlands) cellen.CD20/100 cellen.CD19:getalsfractie:moment:bloed:kwantitatief:
uk-UA Ukrainian (Ukraine) Клітини.CD20/100 клітин.CD19:Чисельна Фракція:МоментЧасу:Кров:Кількісно:
Synonyms: 100 CD19 cells; B Cells; B cells expressing CD19 as a percent of total lymphocytes; B1; B-1; B4; B-4; Blood; Bp35; CD19 Cells; CD20 Cells; Cell; CELL MARKERS; Cellularity; HD-37; Hematology; Heme; Leu12; Leu-12; Leu16; Leu-16; Number fraction; Percent; Point in time; QNT; Quan; Quant; Quantitative; Random; WB; Whole blood
zh-CN Chinese (China) 细胞.CD20/细胞.CD19:计数型分数:时间点:全血:定量型:
Synonyms: B1;B-1;Bp35;Leu16;Leu-16 B4;B-4;HD-37;Leu12;Leu-12 CD19细胞 CD20细胞 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 血;血液

Example Units

Unit Source
% Example UCUM Units

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

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=94689-7