I read with interest the article by Lombardi and Passalacqua1 on eosinophilia and diseases. I agree with the authors that eosinophilia can reflect not only allergic disorders or parasitic infections, but some other potentially severe conditions, which should also be taken into account as well when making a differential diagnosis in the presence of peripheral eosinophilia.
Sinharay R. Gastrointestinal Conditions With Eosinophilia. Arch Intern Med. 2004;164(7):805–806. doi:10.1001/archinte.164.7.805-b