2014
DOI: 10.5858/arpa.2013-0101-rs
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Blastic Plasmacytoid Dendritic Cell Neoplasm: A Clinicopathologic Review

Abstract: Blastic plasmacytoid dendritic cell neoplasm is a rare entity grouped with the acute myeloid leukemia–related precursor neoplasms in the 2008 World Health Organization classification. It was previously postulated to originate from natural killer cells, T cells, or monocytes but is now believed to arise from the plasmacytoid dendritic cell. The pathogenesis of blastic plasmacytoid dendritic cell neoplasm is not well understood, although the neoplasm demonstrates frequent deletion of tumor suppressor genes, incl… Show more

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Cited by 68 publications
(105 citation statements)
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“…As regards histopathology, the tumor cells comprise a monomorphic population of small-to middle-sized cells, with round or irregular nuclei, conspicuous chromatin, partially visible nucleoli, and scant to moderate amounts of cytoplasm with fine granules (22). As regards immunohistochemistry, the BPDCN cells may be positive for CD4, CD43, CD45RA, CD56, BDCA-2/CD303, BDCA-4/CD304, CD123, T-cell leukemia/lymphoma protein 1 (TCL1), cutaneous lymphocyte antigen, CD68, CD7, CD38, CD99, S-100, TdT and CD31, according to previous reports, and are often negative for lymphoid (CD3, CD19 and CD20) and myeloid (CD117, MPO) markers (6,(23)(24)(25)(26)(27); EBER, Ig heavy chain rearrangement and TCR rearrangement are also usually negative (12,24).…”
Section: Discussionmentioning
confidence: 99%
“…As regards histopathology, the tumor cells comprise a monomorphic population of small-to middle-sized cells, with round or irregular nuclei, conspicuous chromatin, partially visible nucleoli, and scant to moderate amounts of cytoplasm with fine granules (22). As regards immunohistochemistry, the BPDCN cells may be positive for CD4, CD43, CD45RA, CD56, BDCA-2/CD303, BDCA-4/CD304, CD123, T-cell leukemia/lymphoma protein 1 (TCL1), cutaneous lymphocyte antigen, CD68, CD7, CD38, CD99, S-100, TdT and CD31, according to previous reports, and are often negative for lymphoid (CD3, CD19 and CD20) and myeloid (CD117, MPO) markers (6,(23)(24)(25)(26)(27); EBER, Ig heavy chain rearrangement and TCR rearrangement are also usually negative (12,24).…”
Section: Discussionmentioning
confidence: 99%
“…2 A completa investigação dos pacientes com essa neoplasia inclui avaliação do sangue periférico através da hematoscopia, da medula óssea através da biópsia e dos linfonodos através 37%, de sangue periférico em 24% e de sistema nervoso central em 11%. 3 O paciente do relato em questão apresentava múltiplas cadeias linfonodais com características clínicas sugestivas de neoplasia, blastos em sangue periférico, não havia evidências e biópsia de medula óssea apresentava 80,3% de células blásticas, sendo qual são necessários 20% de blastos como critério diagnóstico. 2,5 O diagnóstico da NCBDP é determinado pela análise histopatológica e imunohistoquímica da pele e medula óssea.…”
Section: Discussionunclassified
“…A biópsia de medula revela células blásticas atípicas raramente caraterísticas de uma linhagem doença, é necessário a demonstração na imunohistoquímica de CD4 e CD56 e para os marcadores restritos a células dendríticas plasmocitoides, como CD123 e CD303, e negatividade para linhagens linfoide, NK e mieloide. 3,6 A histopatologia e imunohistoquímica de pele e de medula óssea evidenciaram as características necessárias para o diagnóstico de NCBDP.…”
Section: Discussionunclassified
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