haematopoiesis

(redirected from Extramedullary hematopoiesis)
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haematopoiesis

(ˌhɛmətəʊpɔɪˈiːsɪs; ˌhiː-) ,

haemopoiesis

,

hematopoiesis

or

hemopoiesis

n
(Physiology) physiol Also called: haematosis or haematogenesis the formation of blood
haematopoietic, hematopoietic, haemopoietic, hemopoietic adj

hematopoiesis, haematopoiesis

the formation of blood. — hematopoietic, haematopoietic, adj.
See also: Blood and Blood Vessels
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.haematopoiesis - the formation of blood cells in the living body (especially in the bone marrow)
biological process, organic process - a process occurring in living organisms
References in periodicals archive ?
A CT-guided biopsy of the paraspinal lesions revealed extramedullary hematopoiesis that was indistinguishable from that in the nasal mass.
Extramedullary hematopoiesis occurs as a compensatory mechanism for abnormal hematopoiesis when normal red marrow is unable to function because of deficiency disorders or because of various pluripotent stem cell disorders.
Another puzzling aspect of this case is the presence of extramedullary hematopoiesis in the kidney.
Extramedullary hematopoiesis is a well-recognized process in which the body attempts to maintain erythrogenesis in response to an alteration in the normal production of red blood cells.
One case each contained fibrin thrombi, foci of extramedullary hematopoiesis, calcification, and noncaseating epithelioid granulomas.
In summary, the MPNs are involved with one or more of the following features: overproduction of one or more cell lines, hypercellular marrow or bone marrow fibrosis, cytogenetic abnormalities, point mutations, extramedullary hematopoiesis, hemorrhagic bleeding and or thrombosis and can transform into an acute leukemia.
In the birds exhibiting hepatomegaly and splenomegaly, extramedullary hematopoiesis and mild congestion were present in these organs.
Philadelphia-negative chronic myeloproliferative disorders (CMDs) are characterized by clonal proliferation of hematopoietic progenitor cells in the bone marrow and by extramedullary hematopoiesis associated with increased [CD34.
Material on general features covers bone marrow structure and morphology, bone marrow examination and reporting, ancillary studies, and extramedullary hematopoiesis.
There was no clinical or laboratory evidence of platelet dysfunction or of extramedullary hematopoiesis (EMH).
The continued myelofibrosis either results in or is associated with (it is not clear which) extramedullary hematopoiesis in the spleen and, to a lesser extent, in other organs (Figure 5).