title: Inclusion body myositis masquerading as cardiac dyspnea.
abstract: Dyspnea in the elderly can be due to a wide array of pathologies. We discuss a case of an elderly gentleman with an extensive cardiovascular history presenting with acute worsening of chronic dyspnea. Because of persistent respiratory distress unresponsive to standard therapy for congestive heart failure, chronotropic insufficiency, and pulmonary hypertension, further evaluation was undertaken which revealed that diaphragmatic weakness was the etiology of his respiratory failure. EMG and muscle biopsy confirmed the diagnosis of inclusion body myositis (IBM).
authors.affiliation: Department of Internal Medicine in the Mayo Clinic in Rochester, Minnesota.
authors.forename: Siu-Hin
authors.initials: SH
authors.lastname: Wan
authors.affiliation: Department of Internal Medicine in the Mayo Clinic in Rochester, Minnesota.
authors.forename: Jackson J
authors.initials: JJ
authors.lastname: Liang
authors.affiliation: Department of Internal Medicine in the Mayo Clinic in Rochester, Minnesota.
authors.forename: Andrew C
authors.initials: AC
authors.lastname: Greenlund
mesh_terms: D000369:Aged, 80 and over; D001706:Biopsy; D002908:Chronic Disease; D003964:Diaphragm / Q000000981:diagnostic imaging / Q000473:pathology; D004417:Dyspnea / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000628:therapy; D004576:Electromyography; D017809:Fatal Outcome; D006801:Humans; D008297:Male; D018482:Muscle, Skeletal / Q000473:pathology; D018979:Myositis, Inclusion Body / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000628:therapy