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Bronchiectasis may result from a number of infectious and acquired causes, including measles, [11] pneumonia, tuberculosis, immune system problems, as well as the genetic disorder cystic fibrosis. [ 12 ] [ 3 ] [ 13 ] Cystic fibrosis eventually results in severe bronchiectasis in nearly all cases. [ 14 ]
[4] [5] [6] Due to its rarity it presents a difficulty in adult diagnoses, and its initial presentation can be confused with septic shock. [ 7 ] Diagnosis requires an appropriate clinical history , the characteristic expiratory airway collapse on radiological investigation, and exclusion of other causes of congenital and acquired bronchiectasis .
Obstructive lung disease is a category of respiratory disease characterized by airway obstruction.Many obstructive diseases of the lung result from narrowing (obstruction) of the smaller bronchi and larger bronchioles, often because of excessive contraction of the smooth muscle itself.
It is the leading cause of hospital admission for respiratory disease among infants in the United States and accounts for one out of every 13 primary care visits. [8] Bronchiolitis accounts for 3% of emergency department visits for children under 2 years old. [12]
Bronchomalacia is a term for weak cartilage in the walls of the bronchial tubes, often occurring in children under a day. Bronchomalacia means 'floppiness' of some part of the bronchi. Patients present with noisy breathing and/or wheezing. There is collapse of a main stem bronchus on exhalation. If the trachea is also involved the term ...
High resolution computed tomography (HRCT) images of the lower chest in a 16-year-old boy initially diagnosed with DPB (left), and 8 weeks later (right) after a 6-week course of treatment with erythromycin. The bilateral bronchiectasis and prominent centri-lobular nodules with a "tree-in-bud" pattern shows noticeable improvement.
Epiglottitis is a bacterial infection of the larynx which causes life-threatening swelling of the epiglottis with a mortality rate of 7% in adults and 1% in children. [10] Haemophilus influenzae is still the primary cause even with vaccinations. Also Streptococcus pyogenes can cause epiglottitis.
In children, hemoptysis is commonly caused by the presence of a foreign body in the airway. Other common causes include lung cancers and tuberculosis. Less common causes include aspergilloma, bronchiectasis, coccidioidomycosis, pulmonary embolism, pneumonic plague, and cystic fibrosis.