bronchogram
Pronunciation: BRONG-ko-gram
Radiographic imaging study using contrast material to visualize the tracheobronchial tree and detect airway abnormalities.
Full Definition
A bronchogram is a specialized radiographic examination that involves the instillation of contrast material into the tracheobronchial tree to visualize airway anatomy and identify pathological conditions. In pediatric pulmonology, bronchography has been largely replaced by CT and MRI imaging, but it may still be used in specific cases to evaluate complex airway malformations, bronchiectasis, or foreign body aspiration. The procedure requires careful sedation or anesthesia in children and carries risks including aspiration and allergic reactions to contrast material. Modern techniques often use water-soluble contrast agents to minimize complications. The term also refers to the air-filled appearance of bronchi visible on chest radiographs in certain pathological conditions.
In Context
- "The bronchogram revealed extensive bronchiectasis in the right upper lobe." — Radiology report
- "Air bronchograms were visible on the chest X-ray, indicating alveolar consolidation." — Emergency department documentation