myeloid metaplasia

myeloid metaplasia, a disorder in which bone marrow tissue develops in abnormal sites. Characteristics of the condition are anemia, splenomegaly, immature blood cells in the circulation, and hematopoiesis in the liver and spleen. Myeloid metaplasia may be secondary to carcinoma, leukemia, polycythemia vera, or tuberculosis. Kinds include primary myelofibrosis.