14 results
Chronic hypersensitivity pneumonitis
The key findings in chronic hypersensitivity pneumonitis are:
Mosaic pattern with areas of ground-glass atenuation
Chronic hypersensitivity ... findings in chronic hypersensitivity ... Mosaic pattern with areas ... atenuation and areas ... Chronic #Fibrosis #RadiologyAssistant
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Centrilobular emphysema ... low attenuation areas ... Comparison #Table #RadiologyAssistant
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Centrilobular emphysema ... low attenuation areas ... Comparison #Table #RadiologyAssistant
Palpable Skin Crepitus on Physical Exam

Notice these air bubbles under the skin. An 86-year-old woman with
sudden-onset shortness of breath ... neck (shown in video ... travels from these areas ... in subcutaneous areas ... PhysicalExam #Clinical #Video
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Emphysema, when it is severe, can mimick Langerhans cell histiosytosis.
When it extends beyond the centrilobular area
Emphysema, when ... LCH, but also areas ... of emphysema, respiratory ... Radiology #CTChest #Emphysema ... #RadiologyAssistant
This patient presented with acute dyspnoe and a normal chest film (not shown).
The HRCT at presentation
shows lobular areas ... thought to be due to hypersensitivity ... Radiology #CTChest #Hypersensitivity ... HypersensitivityPneumonitis #Resolution #RadiologyAssistant
Lung abnormalities mostly present as areas of increased density, which can be divided into the following
mostly present as areas ... Less frequently areas ... are seen as in emphysema ... Lung #Patterns #RadiologyAssistant
On the left a typical case of panlobular emphysema.
There is uniform destruction of the underlying architecture
of panlobular emphysema ... to widespread areas ... Panlobular emphysema ... severe panlobular emphysema ... PanlobularEmphysema #RadiologyAssistant
Chronic hypersensitivity pneumonitis (2)
The case on the left shows an inspiratory and expiratory scan: the mosaic
Chronic hypersensitivity ... mosaic pattern with areas ... attenuation and areas ... the diagnosis hypersensitivity ... HypersensitivityPneumonitis #Fibrosis #RadiologyAssistant
On the left two different patients with similarl HRCT findings.
The left one is a smoker with
the right has hypersensitivity ... the well defined areas ... HypersensitivityPneumonitis #ILD #RadiologyAssistant