About Interstitial Lung Diseases
Interstitial lung disease refers to a complex group of pulmonary disorders primarily affecting the pulmonary interstitium. Most of these disorders cause progressive scarring of lung tissue, eventually affecting the ability to breathe and the transfer of oxygen into the bloodstream. ILDs can develop in response to environmental injury, auto-immune mediated inflammation, or from unknown causes. The spectrum of ILDs includes idiopathic pulmonary fibrosis, pulmonary sarcoidosis, hypersensitivity pneumonitis, and connective tissue disease-associated ILDs among others.
About Pulmonary Sarcoidosis
Sarcoidosis is an inflammatory disease characterized by the formation of granulomas, clumps of inflammatory cells, in one or more organs in the body. Sarcoidosis affects people of all ages, but typically presents before the age of 50 years, with the incidence peaking at 20 to 39 years. The disorder usually begins in the lungs, skin or lymph nodes, but can affect almost any organ. Sarcoidosis in the lungs is called pulmonary sarcoidosis and 90% or more of patients with sarcoidosis have lung involvement. Pulmonary sarcoidosis is a major form of interstitial lung disease (ILD) a group of immune-mediated disorders which cause progressive fibrosis of lung tissue. Estimates of prevalence vary; however, aTyr believes that approximately 200,000 Americans live with pulmonary sarcoidosis. The prognosis for patients with pulmonary sarcoidosis ranges from benign and self-limiting to chronic, debilitating disease with mortality.