Cooley's Anemia (Mediterranean Disease or Thalassemia): A chronic progressive
anemia commencing early in life and characterized by many normoblasts in the blood,
unusual facies, splenomegaly and familial and racial incidence. Target type red blood
cells are often present in the peripheral blood.
Crenation: The scalloped or notched appearance of the periphery of erythrocytes
found when the cells are suspended in a hypertonic solution. Also found in smears,
caused by dirty glassware, slow drying, and poor smearing technique.
Cytoplasm: Protoplasm of a cell excluding the nucleus.
DNA: Deoxyribonucletic acid.
Differential Count: An en1.meration of the types of white blood cells seen on a stained
Ecchymosis: Subcutaneous extravastion of blood covering a large area.
Endothelial Leukocyte: Monocyte.
Eosinopenia: An abnormal decrease in eosinophils.
Eosinophil: A granular leukocyte, the granules of which have an affinity for the acid
dye of Wright's stain (eosin). The granules are large, round, uniform in size, red-orange
in color and are shiny and refractile.
Eosinophilia: A relative or absolute leukocytosis in which the main increase is in
Eosinophilic: Readily stained with eaosin, red-orange stain.
Epigastric: Pertaining to the upper middle portion of the abdomen.
: A disease marked
by persistent polycythemia and increased blood volume
also polychythemia vera.
Erythrocyte: Red blood cell.
Erythrocytosis: An increase in the total number of erythrocytes.
Erythrogenic: Producing erythrocytes.