A 75-year-old man presented with a 2-year-long history of gradually increasing dyspnea on exertion. Before retiring from his construction job, he worked with an insulation unit for 36 years. His chest x-ray showed bibasilar linear opacities and mild fibrosis. Pulmonary function test results leaned towards restrictive lung disease.
What can be the diagnosis? Usual interstitial pneumonitis (UIP) Langerhans cell histiocytosis Sarcoidosis Asbestosis (The answer is posted in the comment section below!) *This Case Challenge is from the Editorial Team of Docplexus and is meant for educational purposes only. ##Disclaimer## The content provided on Docplexus is intended for educational purposes only. While we strive to ensure its accuracy, we make no warranties, explicit or implied, about the suitability, reliability, or adequacy of the information, including data visualization elements and…