Discriminating between essential thrombocythemia and masked polycythemia vera in JAK2 mutated patients

被引：54

作者：

Barbui, Tiziano ^{[1
,2
]}

Thiele, Juergen ^{[3
]}

Carobbio, Alessandra ^{[1
]}

Guglielmelli, Paola ^{[4
]}

Rambaldi, Alessandro ^{[2
]}

Vannucchi, Alessandro M. ^{[4
]}

Tefferi, Ayalew ^{[5
]}

机构：

[1] Osped Papa Giovanni XXIII, Res Fdn, I-24127 Bergamo, Bg, Italy

[2] Osped Papa Giovanni XXIII, Div Hematol, I-24127 Bergamo, Bg, Italy

[3] Univ Cologne, Inst Pathol, Cologne, Germany

[4] Univ Florence, Dept Expt & Clin Med, Florence, Italy

[5] Mayo Clin, Div Hematol, Rochester, MN USA

来源：

AMERICAN JOURNAL OF HEMATOLOGY | 2014年 / 89卷 / 06期

关键词：

MYELOPROLIFERATIVE NEOPLASMS; DIAGNOSIS; CLASSIFICATION; MUTATIONS;

D O I：

10.1002/ajh.23694

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

In patients not meeting the required hematocrit (HCT) or hemoglobin (Hb) thresholds according to BCSH and the WHO diagnostic criteria, the diagnosis of masked polycythemia vera (mPV) has been proposed. A comparison of HCT or Hb values with the expression of JAK2V617F, JAK2 exon 12, and CALR mutations in strictly WHO-defined 257 overt PV and 140 mPV (59 mPV according to BCSH) and 397 patients with essential thrombocythemia (ET) was performed. Hb and HCT thresholds of mPV patients were significantly higher than JAK2V617F ET (P<0.0001). The best cut-off for Hb to discriminate JAK2-mutated ET from PV was 16.5 g/dL for males and 16.0 g/dL for females. For HCT, this was 49% in males and 48% in females. The proportion of patients correctly classified as ET or PV when regarding Hb or HCT levels was 95% in males and 93% in females and 94% in both males and females, respectively. Am. J. Hematol. 89:588-590, 2014. (c) 2014 Wiley Periodicals, Inc.

引用

页码：588 / 590

页数：3

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