Pulmonary emphysema refers to destruction of alveolar spaces without fibrosis and occurs in several patterns. Centrilobular emphysema develops at the centre of the secondary pulmonary lobule and is the most common form seen in smokers. Panlobular emphysema refers to alveolar destruction throughout the secondary pulmonary lobule and is typical of alpha-1-antitrypsin deficiency. Paraseptal emphysema occurs along the interlobular septae and particularly the pleural margin. Often all patterns can be seen in the same lung, as with this HRCT example.
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Incudo-mallear joint disruption - the smallest joint dislocation you can get! The incus and malleolus are normally closely apposed with the malleolus appearing like a ball of ice-cream and the incus a cone. On this CT image the ball of ice-cream has fallen out of the cone consistent with ossicular chain disruption. Can you see it?
You’ve Gotta Love Radiology! Here we have emphysema severity mapped in color, a guided lung biopsy, a carotid stent, a thoracic angiogram and the larynx.
All images performed with TOSHIBA’s Aquilion ONE ViSION edition CT. You can help support Radiopaedia.org - your ultimate FREE online radiology resource - simply by visiting the TOSHIBA site this week.