Thank you for your inquiry.
Not all causes of elevated IgE are associated with eosinophilia, and in some instances where eosinophilia is present, it may wax and wane. In many instances, the cause of an elevated IgE cannot be determined. For a more detailed look at the potential causes of an elevated IgE, I would refer you to the numerous entries that are posted on our “Ask the Expert” website regarding this issue. You can access these by typing “elevated IgE” into the search box.
Thank you again for your inquiry and we hope this response is helpful to you.
Phil Lieberman, M.D.