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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Exp+Hematol+Oncol
2015 ; 5
(ä): 12
Nephropedia Template TP
gab.com Text
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English Wikipedia
A systematic classification of megakaryocytic dysplasia and its impact on
prognosis for patients with myelodysplastic syndromes
#MMPMID27127725
Feng G
; Gale RP
; Cui W
; Cai W
; Huang G
; Xu Z
; Qin T
; Zhang Y
; Li B
; Fang L
; Zhang H
; Pan L
; Hu N
; Qu S
; Wang J
; Cui Y
; Xiao Z
Exp Hematol Oncol
2015[]; 5
(ä): 12
PMID27127725
show ga
BACKGROUND: Dys-megakaryopoiesis is defined as ?10 % of dysplastic megakaryocytes
in bone marrow smears by the World Health Organization. However, concordance
rates for dysplastic megakaryocytes between different observers is low and,
consequently, evaluation of dysmegakaryopoiesis is also often discordant.
RESULTS: We performed CD41 immune staining and proposed a systematic
classification of dys-megakaryopoiesis on bone marrow films: (1)
micro-megakaryocytes (<12 µm); (2) micro-megakaryocytes (12-40 µm) with 1
nucleus; (3) micro-megakaryocytes (12-40 µm) with 2 nuclei; (4)
micro-megakaryocytes (12-40 um) with multiple (more than 2) nuclei; (5)
dysplastic megakaryocytes (?40 µm) with 1 nucleus; (6) dysplastic megakaryocytes
(?40 µm) with 2 nuclei; and (7) dysplastic megakaryocytes (?40 µm) with multiple
(more than 2) nuclei. Further, we evaluated the prognostic impact of
micro-megakaryocytes and dysplastic mono-nucleated megakaryocytes on MDS
patients. The best discriminator cut-off point for each group was determined by
the minimal P value approach. In multivariate analyses micro-megakaryocytes ?25 %
and dysplastic mono-nucleated megakaryocytes ?30 % were independent adverse
prognostic factors (hazard ratio [HR] = 1.58 [95 % confidence interval [CI],
1.11, 2.23]; P = 0.010 and 1.53 [1.09, 2.16]; P = 0.014). CONCLUSIONS: Our data
suggest integration of micro-megakaryocytes and dysplastic mono-nucleated
megakaryocytes improve predictive accuracy of the international prognostic
scoring system-revised (IPSS-R) scoring system.