title: Exercise-induced endobronchial hemorrhage: a rare clinical presentation.
abstract: The phenomenon of exercise-induced hemoptysis is still relatively underrecognised in humans. We report a case of recurrent hemoptysis brought on by vigorous exercise. A 33-year-old male presented with several episodes of intermittent fresh small-volume hemoptysis reproducible on vigorous exercise. There was no other significant medical history other than a past history of testicular tumor, treated with orchidectomy and adjuvant Bleomycin-based chemotherapy 1 year prior to onset of symptoms. Computed tomography scan showed no major abnormalities other than few small bilateral non-specific nodules. Computed tomography aortogram and pulmonary angiogram, ventilation/perfusion scan, and echocardiography yielded no significant abnormalities. Infectious, autoimmune disease, coagulopathy, vasculitis, and malignant causes were excluded. Bronchoscopy showed possible endobronchial bleeding. This phenomenon is thought to be due to vulnerability of pulmonary capillaries to stress or mechanical failure during strenuous exercise at high cardiorespiratory workload.
authors: Respiratory and Sleep Medicine Unit Royal Darwin Hospital and Darwin private hospital Darwin Northern Territory Australia.
authors: Anuk
authors: A
authors: Kruavit
authors: Larrakeyah Barracks Medical Centre Darwin Northern Territory Australia.
authors: Mukesh
authors: M
authors: Jain
authors: Respiratory and Sleep Medicine Royal Brisbane Hospital Brisbane Australia.
authors: David
authors: D
authors: Fielding
authors: Respiratory and Sleep Medicine Unit Royal Darwin Hospital and Darwin private hospital Darwin Northern Territory Australia.
authors: Subash
authors: S
authors: Heraganahally
keywords: Exercise; hemoptysis; pulmonary capillary; pulmonary hemorrhage; pulmonary oedema