Pathology of Hemopoietic System Flashcards
3-12 spicules of uneven length derived from disorders in lipid metabolism
Acanthocytes
present in fibrotic states of marrow, hemolytic anemia, and result of certain drugs
Dacryocytes
develop from decrease in hemoglobin that result in relative membrane increase
Codocytes
conditions associated with codocytes
hemoglobinopathies, iron deficiency anemia, liver disease and cirrhosis
also seen in circumstances during increase of membrane after decrease in hemoglobin
leptocyte and microcytes
develop from premature release of red cells usually in periods of erythropoietic stress like in hemolytic anemia and hyperthyroidism
macrocytes
common in vascular diseases, DIC, thrombotic thrombocytopenic purpura
schizocytes
there is central thickness recognized in peripheral blood smears
spherocytosis
major causes of spherocytosis
membrane depletion, accelerated red cell aging, immunohemolytic anemia
origin is removing red cell inclusion
dacryocytes
ill-defined, red cells with variable forms from spherical to almost rod like
elliptocytosis
increase in red cell mass
polycythemia
reduction of normal red cells or hemoglobin concentration per unit volume of blood
anemia
three causes of anemia
hemorrhage, hemolysis, erythroid hypoplasia
develops from membrane damage and mechanism involves trapping of red cells in circulation by fibrin
schizocytes
what does regenerative anemia indicate
hemorrhage or hemolysis
erythroid hypoplasia or aplasia indicates
non regenerative anemia
it is the increased numbers of circulating reticulocytes or immature erythrocytes
reticulocytosis
increased bone marrow erythropoiesis
reticulocytosis
comprises the leukocytes carried in circulation
circulating pool
leukocytes present in periphery blood vessels
marginal pool
increase in concentration of packed cell volume and hemoglobin concentration in the peripheral blood
polycythemia
leukocytes awaiting differentiation and release in bone marrow and lymphoid tissues
marrow pool
general increase in number of leukocytes in circulation
leukocytosis