title: Clinical quiz. Exertional dyspnea in a 50-year-old man.
authors.affiliation: Department of Respiratory Medicine, Vallabhbhai Patel Chest Institute, University of Delhi, PO Box 2101, Delhi 110 007, India.
authors.forename: Amita
authors.initials: A
authors.lastname: Singh
authors.forename: Jaya
authors.initials: J
authors.lastname: Kala
authors.forename: Sandeep
authors.initials: S
authors.lastname: Sahay
authors.forename: Ashok
authors.initials: A
authors.lastname: Shah
mesh_terms: D003560:Cysts; D004417:Dyspnea; D006801:Humans; D008297:Male; D008482:Mediastinum / Q000000981:diagnostic imaging; D008875:Middle Aged; D011859:Radiography; D013945:Thymoma / Q000000981:diagnostic imaging / Q000601:surgery*; D013953:Thymus Neoplasms / Q000000981:diagnostic imaging / Q000601:surgery*