Tags: Disease.
Eosinophilia is a condition in which the eosinophil count in the peripheral blood exceeds 0.45×109/L (450/μl). Eosinophils usually account for less than 7% of the circulating leukocytes. A marked increase in non-blood tissue eosinophil count noticed upon histopathologic examination is diagnostic for tissue eosinophilia. Several causes are known with the most common being some form of allergic reaction or parasitosis.
