pulmonary disorders
Silicosis
Introduction
Silicosis is caused by inhalation of respirable crystalline silica dust and is characterized by nodular pulmonary fibrosis. Chronic silicosis generally progresses insidiously and can advance to progressive massive fibrosis and respiratory impairment. Diagnosis is based on history and chest imaging findings. The cornerstone of treatment is supportive care and, for severe cases, lung transplantation. (See also Overview of Environmental and Occupational Pulmonary Diseases .) 