The common cause of all forms of otitis media is dysfunction of the Eustachian tube. This is usually due to inflammation of the mucous membranes in the nasopharynx, which can be caused by a viral upper respiratory tract infection (URTI), strep throat, or possibly by allergies. By reflux or aspiration of unwanted secretions from the nasopharynx into the normally sterile middle-ear space, the fluid may then become infected — usually with bacteria. The virus that caused the initial upper respiratory infection can itself be identified as the pathogen causing the infection.
symptom of Chronic multifocal Langerhans cell histiocytosis
symptom of Hodgkin lymphoma
symptom of T-cell lymphoma
symptom of Cryptococcosis
symptom of Chronic lymphocytic leukemia
symptoms of Non-Hodgkin lymphoma
symptom of Lymphoma
symptom of Paracoccidioidomycosis