Clinical correlates of splenic histopathology and splenic karyotype in myelofibrosis with myeloid metaplasia

Ruben Mesa, Chin Yang Li, Georgene Schroeder, Ayalew Tefferi

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

Splenic extramedullary hematopoiesis is an integral component of myelofibrosis with myeloid metaplasia (MMM) and may be classified into 3 distinct histologic patterns of infiltration by myeloid precursors: diffuse, nodular, and a predominance of immature granulocytes. These 3 histologic patterns occurred in 121 (56.8%), 75 (35.2%), and 17 (8%), respectively, of 213 patients with MMM who underwent splenectomy at a single institution. In general, karyotypic findings in splenic tissue (n = 92) were similar to those seen in the bone marrow. The histologic pattern of immature granulocyte predominance, the presence of microscopic splenic infarcts (26 patients), or the detection of an abnormal splenic karyotype (52 patients) was significantly associated with decreased postsplenectomy survival. These adverse features were also associated with characteristics of advanced disease. These observations support the bone marrow origin of the myeloid progenitor pool in the spleen of patients with MMM and suggest a prognostic value for splenic histopathology and karyotype.

Original languageEnglish (US)
Pages (from-to)3665-3667
Number of pages3
JournalBlood
Volume97
Issue number11
DOIs
StatePublished - Jun 1 2001
Externally publishedYes

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Primary Myelofibrosis
Karyotype
Bone
Infiltration
Granulocytes
Bone Marrow
Splenic Infarction
Extramedullary Hematopoiesis
Tissue
Abnormal Karyotype
Splenectomy
Spleen
Survival

ASJC Scopus subject areas

  • Hematology

Cite this

Clinical correlates of splenic histopathology and splenic karyotype in myelofibrosis with myeloid metaplasia. / Mesa, Ruben; Li, Chin Yang; Schroeder, Georgene; Tefferi, Ayalew.

In: Blood, Vol. 97, No. 11, 01.06.2001, p. 3665-3667.

Research output: Contribution to journalArticle

Mesa, Ruben ; Li, Chin Yang ; Schroeder, Georgene ; Tefferi, Ayalew. / Clinical correlates of splenic histopathology and splenic karyotype in myelofibrosis with myeloid metaplasia. In: Blood. 2001 ; Vol. 97, No. 11. pp. 3665-3667.
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