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Query: UMLS:C0019079 (hemoptysis)
 6,129 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Massive hemoptysis is the expectoration of approximately 600 ml of blood in twenty-four hours. Major causes of massive hemoptysis are tuberculosis, bronchiectasis, pulmonary neoplasm, fungus ball, bronchial adenomas, lung abscess, intrabronchial rupture of an aortic aneurysm, cystic fibrosis, pulmonary infarction, and pulmonary trauma. Other, less common causes include Goodpasture's syndrome, broncholiths, pulmonary varix, A-V malformation, and bleeding disorders. Agenesis of the pulmonary artery usually occurs in association with congenital cardiac anomalies, and isolated unilateral absence of the pulmonary artery is uncommon. About 10% of the patients with pulmonary artery agenesis develop inconsequential hemoptysis, but massive hemoptysis is a very rare complication of this anomaly. The following is a case report of a twenty-nine-year-old man with agenesis of the left pulmonary artery, who presented with massive hemoptysis requiring embolization and, eventually, pneumonectomy.
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PMID:Pulmonary artery agenesis presenting as massive hemoptysis--a case report. 381 23

Causes of hemoptysis in children have not been well documented in the paediatric otolaryngology literature. The aim of this retrospective review is to determine the commonest causes of hemoptysis in the paediatric age group presenting to an otolaryngologist. We reviewed the charts of patients presenting to an otolaryngologist at The Hospital for Sick Children, Toronto, Ontario, over a 10-year period. A total of 37 inpatients beyond the neonatal period were referred for further assessment of hemoptysis. Thirty-two patients (86.5%) underwent bronchoscopy to determine the cause, the hemoptysis resolving spontaneously in the remaining five patients without a diagnosis. Four patients who had a bronchoscopy also had no identifiable pathology. Tracheobronchitis was the commonest diagnosis (19%), followed by tracheotomy-related problems (15.5%) Other causes included bronchiectasis, aspiration of blood, pulmonary hemorrhage, foreign-body aspiration, cystic fibrosis, A-V malformation, tracheobronchial hemangioma, hereditary telangiectasia, laceration of a vocal cord, and pneumonia. Otolaryngologists need to be aware of the etiology of hemoptysis in children. The commonest causes are infection and trauma, and not vascular anomalies or neoplasms as often perceived.
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PMID:Hemoptysis in children: the hospital for sick children experience. 881 10