Focused review Immunoglobulin E associated respiratory diseases: Part 2 Amr Ismail MD, Kenneth C. Iwuji MD, James A. Tarbox MD ABSTRACT Multiple pulmonary pathologies have been associated with elevated levels of Immunoglobulin E (IgE). Since its discovery in 1966, its role in multiple diseases has become clearer. This has allowed for the emergence of new medications that target IgE. In this review, we will summarize some of the most common pulmonary pathologies in which IgE has a role in their etiology. Keywords: Immunoglobulin E, asthma, allergic rhinitis, acute eosinophilic pneumonia, chronic eosinophilic pneumonia, parasitic lung infection, allergic bronchopulmonary aspergillosis Article citation: Ismail A, Iwuji KC, Tarbox JA. Immunoglobulin E associated respiratory diseases: Part 2. The Southwest Respiratory and Critical Care Chronicles 2019;7(31):34–43 From: Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, Texas Submitted: 9/24/2019 Accepted: 10/19/2019 Reviewer: John Pixley MD Conflicts of interest: none This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.