Related Experiment Video
Updated: May 28, 2026

Point-of-Care Lung Ultrasound in Adults: Image Acquisition
Published on: March 3, 2023
Fatty bronchogram: a sign of cystic teratoma rupture in the lung
1Department of Diagnostic Imaging, AORN Monaldi, Via Leonardo Bianchi, Naples 80131, Italy.
Abstract:
A 47-year-old man was admitted to our hospital for septic fever. Multidetector computed tomography showed a pulmonary cavitated consolidation that was partially filled by low-density material and an interrupted rim of soft tissue in adjacent mediastinum, lining an inhomogeneous fat density area. Lung consolidation presented a bronchogram fluid sign with a -40 Hounsfield unit density value, which indicated a fatty bronchogram. Mediastinal cystic teratoma rupture in the lung was derived from a bacterial infection, with the lipoid material pouring into the lung and its drainage bronchus.
Related Concept Videos
Cystic Fibrosis: Pathogenesis
CF is primarily caused by a genetic mutation in a chromosome 7 gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. The most common gene mutation leading to CF is the ΔF508 mutation, but...
Physical Assessment of the Respiratory Tract II: Palpation
Thoracic Palpation
Thoracic palpation detects tenderness, masses, lesions, respiratory excursions, and vocal fremitus. The nurse assesses...
Pneumothorax-I
Pneumothorax can be even further classified as spontaneous, traumatic, and tension pneumothorax.
Chronic Obstructive Pulmonary Disease II: Emphysema
Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features
Cystic Fibrosis: Management
Sinus disease and chronic sinusitis...
