Myelophthisis: Difference between revisions
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==Overview== | ==Overview== | ||
'''Myelophthisis''' refers to the displacement of hemopoietic bone-marrow tissue into the peripheral blood, either by fibrosis, tumors or granulomas. A myelophthisic blood smear is one which contains nucleated red blood cells, granulocyte precursors, and teardrop-shaped erythrocytes. This condition is also known as Myelophthisic [[anemia]]. Myelophthisis can be observed in cancers that that involve the bone marrow such as [[leukemia]], [[lymphoma]], and [[myeloma]] or metastatic [[carcinoma]]. | '''Myelophthisis''' refers to the displacement of hemopoietic bone-marrow tissue into the peripheral blood, either by fibrosis, tumors or granulomas. A myelophthisic blood smear is one which contains nucleated red blood cells, granulocyte precursors, and teardrop-shaped erythrocytes. This condition is also known as Myelophthisic [[anemia]]. Myelophthisis can be observed in cancers that that involve the bone marrow such as [[leukemia]], [[lymphoma]], and [[myeloma]] or metastatic [[carcinoma]]. | ||
The commonest cause is metastatic cancer, most often carcinomas arising in breast, lung and prostate.However any infiltrative process (e.g.,granulomatous disease) involving the marrow can produce identical findings.It should be remembered that it is also a feature of spent phase of myeloproliferative disorders.They cause marrow distortion and fibrosis which act to displace normal marrow elements and disturb mechanisms that regulate the egress of red cells and granulocytes from the marrow. | |||
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Revision as of 08:26, 28 November 2012
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1],Assistant Editor-in-Chief: Soumya Sachdeva
Please Take Over This Page and Apply to be Editor-In-Chief for this topic: There can be one or more than one Editor-In-Chief. You may also apply to be an Associate Editor-In-Chief of one of the subtopics below. Please mail us [2] to indicate your interest in serving either as an Editor-In-Chief of the entire topic or as an Associate Editor-In-Chief for a subtopic. Please be sure to attach your CV and or biographical sketch.
Synonyms: Myelophthisic anemia
Overview
Myelophthisis refers to the displacement of hemopoietic bone-marrow tissue into the peripheral blood, either by fibrosis, tumors or granulomas. A myelophthisic blood smear is one which contains nucleated red blood cells, granulocyte precursors, and teardrop-shaped erythrocytes. This condition is also known as Myelophthisic anemia. Myelophthisis can be observed in cancers that that involve the bone marrow such as leukemia, lymphoma, and myeloma or metastatic carcinoma. The commonest cause is metastatic cancer, most often carcinomas arising in breast, lung and prostate.However any infiltrative process (e.g.,granulomatous disease) involving the marrow can produce identical findings.It should be remembered that it is also a feature of spent phase of myeloproliferative disorders.They cause marrow distortion and fibrosis which act to displace normal marrow elements and disturb mechanisms that regulate the egress of red cells and granulocytes from the marrow.