What is consolidation in CT chest?
Consolidation is an alveolar-filling process that replaces air within the affected airspac- es, increasing in pulmonary attenuation and obscuring the margins of adjacent airways and vessels on radiographs and CT scans [2].
What is Perihilar lung?
Hilum anatomy and function The pleura help your lungs expand and contract with each breath and contain pleural fluid that lubricates this movement. The inner edge of the hilum acts as a channel where a number of structures pass into your lungs. These include your: bronchi. pulmonary veins.
Does consolidation enhance on CT?
Conclusion: Consolidation with a low level of enhancement, decreased lung lobe volume, and bronchi with irregular, beaded shape and denser and larger centrilobu- lar nodules are helpful CT findings for the diagnosis of tuberculosis.
How would you describe consolidation on CT?
Consolidation is characterized on radiographs and computed tomography (CT) by the presence of one or more fairly homogeneous opacities associated with obscuration of the pulmonary vessels and little or no loss of volume.
What are the signs of consolidation?
Signs that consolidation may have occurred include:
- Expansion of the thorax on inspiration is reduced on the affected side.
- Vocal fremitus is increased on the affected side.
- Percussion is dull in the affected area.
- Breath sounds are bronchial.
- Possible medium, late, or pan-inspiratory crackles.
- Vocal resonance is increased.
What does patchy consolidation on chest radiographs indicate on CT?
Patchy consolidation visible on chest radiographs sometimes appears to be lobular or multilobular on CT (i.e., involving individual pulmonary lobules; Fig. 2-4 ). Some lobules appear abnormally dense while adjacent lobules appear normally aerated. An acinus is the largest unit of lung structure in which all airways participate in gas exchange.
Which radiographic and CT abnormalities are characteristic of air-space consolidation in bronchiectasis?
Radiographic and computed tomography (CT) abnormalities indicating the presence of air-space consolidation include the following: With complete replacement of alveolar air, homogeneous opacification of the lung results. Vessels within the consolidated lung are invisible ( Fig. 2-1A ).
What does a chest radiograph showing consolidation in the right lobe indicate?
(B) Lateral chest radiograph confirming the presence of consolidation in the right middle lobe, which accounts for obscuration of the right heart border on the frontal view, and consolidation in the lower lobe, which obscures the silhouette of the right hemidiaphragm.