Department of Medicine

Pulmonary, Critical Care, Sleep & Occupational Medicine

Interstitial and Immunologic Lung Disease

The Pulmonary Division at the Indiana University School of Medicine has collaborated with several of its partners to develop specialized programs for care of patients with immunologic lung disease. All physicians are board-certified pulmonologists with special interest and expertise in interstitial and immunologic disorders of the lung. This program offers education for patients, trainees, and physicians, diligent monitoring of treatment side effects, novel treatments and research protocols for eligible patients, a CLIA certified bronchoalveolar lavage laboratory offering lung cell sub typing, and a full profile of medical services dedicated to the proper diagnosis of immunologic lung diseases.

Who Should Contact Us


  • Any patient diagnosed with Interstitial lung disease (NSIP, UIP, AIP, DIP), Lupus, Rheumatoid arthritis, Wegners granulomatosis, Scleroderma, Sjogrens, Lung disease associated with immunodeficiency (HIV, Immunoglobulin deficiency), Idiopathic pulmonary fibrosis, Eosinophilic lung disease (CEP and AEP), Bronchiolitis obliterans, Hypersensitivity pneumonitis, Pulmonary Langerhans cell histiocytosis, LAM.
  • Patients with immunologic lung disease requesting a complete evaluation for the disorder and/or a second opinion regarding their disease.
  • Any patient who is not responding to therapy for an immunologic disease and who may need alternative therapy.
  • Any patient interested in participating in research protocols designed to further our understanding of interstitial lung diseases (not all patients will be eligible).
  • Any referring physician who would like subspecialty consultation for the diagnosis and management of their patients with immunologic lung disorders.

Who Should NOT Contact Us


  • Sarcoidosis is a disease that can affect any organ, but most commonly affects the lung, lymph nodes, skin, and eyes. The IU pulmonary group has several physicians who have interest in this disorder and has developed specialized treatment plans for these patients. Please see the Sarcoidosis Clinic for more information.
  • Asthma is a common disorder with immunologic components but is not specifically handled in this clinic. Asthma is a disorder that is best handled in a specialized program for airway disease. The IU Pulmonary physicians have developed a comprehensive program specifically for these patients. For further information please refer to the Asthma & Allergy Center.


Clinical Faculty

Homer Twigg, M.D. - Immunoglobulin subclass deficiency, HIV-related lung disease, Immunologic lung disease, pulmonary embolus clinic at Indiana University

Chadi Hage, M.D. - Immunologic and infectious lung disease VA patients