title: A 66-Year-Old Man With Mediastinal Mass and Dyspnea.
abstract: A 66-year-old man presented with dry cough and shortness of breath on exertion of 6 months' duration. There were no complaints of fever and hemoptysis. His history was significant for recurrent episodes of respiratory tract infections over the previous 4 years. He had also had episodes of recurrent otitis media and pus discharge from the left ear for 3 years, with progressive loss of hearing. There was no history of recurrent skin infections or diarrhea. He was treated symptomatically with antibiotics by local general practitioners. He was a nonsmoker and did not drink alcohol, and there was no history of environmental or occupational exposure. He had been known to have diabetes for 10 years. He had negative results for the presence of HIV and hepatitis B surface antigen.
authors.affiliation: Department of Respiratory Medicine, Nizam's Institute of Medical Sciences, Punjagutta, Hyderabad, Telangana, India. Electronic address: drnarendrajipmer@gmail.com.
authors.forename: Narendra Kumar
authors.initials: NK
authors.lastname: Narahari
authors.affiliation: Department of Respiratory Medicine, Nizam's Institute of Medical Sciences, Punjagutta, Hyderabad, Telangana, India.
authors.forename: Paramjyothi K
authors.initials: PK
authors.lastname: Gongati
authors.affiliation: Department of Pathology, Nizam's Institute of Medical Sciences, Punjagutta, Hyderabad, Telangana, India.
authors.forename: Shantveer G
authors.initials: SG
authors.lastname: Uppin
authors.affiliation: Department of Radiology and Imaging, Nizam's Institute of Medical Sciences, Punjagutta, Hyderabad, Telangana, India.
authors.forename: Anu
authors.initials: A
authors.lastname: Kapoor
authors.affiliation: Department of Respiratory Medicine, Nizam's Institute of Medical Sciences, Punjagutta, Hyderabad, Telangana, India.
authors.forename: Bhaskar
authors.initials: B
authors.lastname: Kakarla
authors.affiliation: Department of Cardiothoracic Surgery, Nizam's Institute of Medical Sciences, Punjagutta, Hyderabad, Telangana, India.
authors.forename: Ramakrishna Dev
authors.initials: RD
authors.lastname: Tella
mesh_terms: D000368:Aged; D044963:Biopsy, Fine-Needle; D003371:Cough; D004417:Dyspnea; D006099:Granuloma / Q000150:complications / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D007153:Immunologic Deficiency Syndromes / Q000150:complications / Q000175:diagnosis*; D008168:Lung / Q000000981:diagnostic imaging / Q000473:pathology; D017563:Lung Diseases, Interstitial / Q000150:complications / Q000000981:diagnostic imaging* / Q000473:pathology; D008297:Male; D013577:Syndrome; D013945:Thymoma / Q000150:complications / Q000000981:diagnostic imaging* / Q000473:pathology; D013953:Thymus Neoplasms / Q000150:complications / Q000000981:diagnostic imaging* / Q000473:pathology; D014057:Tomography, X-Ray Computed