Eosinophilic lung disease associated with non-Hodgkin lymphoma: A case report and review of the literature

Eosinophilic lung diseases have many causes but are not often the result of neoplastic disease. We describe a patient with subacute dyspnea due to eosinophilic lung disease who also had a peripheral T-cell lymphoma. The diagnosis was made by imaging and transbronchial biopsies of the lungs along with an excisional biopsy of a palpable epitrochlear lymph node. There is a rare association between eosinophilic pneumonias and non-Hodgkin lymphomas. This is the third known case of a peripheral T-cell lymphoma associated with eosinophilic lung disease. This report highlights the association, discusses theorized mechanisms involved, and emphasizes the importance of searching for underlying etiologies for eosinophilic lung disease.