postpolycythemic myeloid metaplasia /-pol′isīthē″mik/ [L, post + Gk, polys, many, kytos, cell, haima, blood, myelos, marrow, eidos, form, meta, with, plassein, to mold] , a late-developing anemia in polycythemia vera, caused by bone marrow fibrosis. The production of red blood cells occurs only in the liver and spleen. This condition is frequently complicated by leukemia, especially if the patient has been treated with ionizing radiation. See also myelofibrosis, myeloid metaplasia, polycythemia.
