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Romanian Journal of Laboratory Medicine
Article . 2014 . Peer-reviewed
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Romanian Journal of Laboratory Medicine
Article
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Blastic plasmacytoid dendritic cell neoplasia - a rare type of acute leukemia

Authors: Köpeczi Judit Beáta; Benedek Erzsébet; Kakucs Enikő; Tunyogi Aliz; Istrati Monica; Benedek Istvan;

Blastic plasmacytoid dendritic cell neoplasia - a rare type of acute leukemia

Abstract

Neoplasmul cu celule dendritice plasmocitoide blastice (NCDPB), clasificat recent în grupul leucemiilor acute mieloide este o boală hematologică malignă rară cu evoluţie clinică extrem de agresivă. Raportăm cazul unei paciente în vârstă de 55 ani care a prezentat ruptură spontană a splinei. Diagnosticul histopatologic, fără imunohistochimie, a fost de limfom malign non-Hodgkin (LMNH) splenic de zonă marginală. Pacienta a primit 4 cure citostatice. Datorită evoluţiei nefavorabile, splina a fost reexaminată histopatologic şi imunohistochimic într-un alt laborator. Diagnosticul de LMNH a fost exclus şi s-a ridicat suspiciunea unei proliferări maligne, posibil mieloide. Datorită neconcordanţei dintre diagnostice s-a efectuat o nouă examinare imunohistochimică într-un al treilea laborator. LMNH se infirmă şi se suspicionează leucemie mieloidă, cu celule NK sau cu celule dendritice plasmocitoide. Pacienta a fost internată în clinica noastră după 8 luni de la diagnosticul iniţial. Imunofenotiparea prin citometrie în flux efectuată din măduva osoasă a evidenţiat 23% blaşti pozitivi pentru markerii CD4, CD56, CD123, HLA-DR, CD38, CD11b, CD2 şi negativi pentru markerii specifici liniilor celulare limfoide B, T, NK şi mielomonocitare. Diagnosticul final a fost NCDPB în fază leucemică. Datorită diversităii prezentării clinice, morfologice şi imunofenotipice a NCDPB, diagnosticul acestei boli maligne rare rămâne o provocare. Imunofenotiparea prin citometrie în flux este superioară examenului imunohistochimic datorită disponibilităţii unui panel mai larg de anticorpi şi posibilităţii de a identifica intensitatea expresiei antigenice. Formele atipice ale NCDPB trebuie să fie recunoscute în timp util pentru a putea trata corespunzător pacienţii cu această boală agresivă.

Keywords

immunophenotyping, neoplasm cd4+/cd56+/lin-, blastic plasmacytoid dendritic cell neoplasm, neoplasm cu celule dendritice plasmocitoide blastice, imunofenotipare, cd123, R, cd4+/cd56+/lin- neoplasm, Medicine

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    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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