Eosinophilia

A condition in which eosinophils in peripheral blood exceed normal values ​​(not more than 450 / microliter in normal people or less than 7% of total white blood cells). Eosinophils description: The cytoplasm contains large dark red particles. The shape of the nucleus is similar to that of neutrophils, and usually has 2-3 leaves, accounting for about 4% of the total number of white blood cells. Eosinophils in the blood account for 2% -4% of the total number of white blood cells, ie, 100-350 cells / μ1. The number of eosinophils in the blood fluctuates significantly from day to night. The number of cells decreases in the morning and the number of cells increases at midnight. This periodic change in cell numbers is related to the diurnal fluctuations in the amount of glucocorticoids released by the adrenal cortex. When the concentration of corticosteroids in the blood increases, the number of eosinophils decreases; while when the concentration of corticosteroids decreases, the number of cells increases. The cytoplasm of eosinophils contains larger, oval eosinophils. These white blood cells also have phagocytosis.