Desquamative interstitial pneumonia is a difficult medical term that refers to a rare lung disease characterized by an inflammation and thickening of the alveoli in the lungs. This condition can be challenging to diagnose and treat because few specialists are familiar with it. Some synonyms for desquamative interstitial pneumonia include idiopathic pulmonary fibrosis, pulmonary fibrosis, and interstitial lung disease. Other related conditions include hypersensitivity pneumonitis, cryptogenic organizing pneumonia, and sarcoidosis. If you suspect that you or a loved one is suffering from any of these conditions, it is important to consult a medical professional who can provide an accurate diagnosis and effective treatment options.