12 results
Chronic hypersensitivity pneumonitis
The key findings in chronic hypersensitivity pneumonitis are:
Mosaic pattern with areas of ground-glass atenuation
pattern with areas ... atenuation and areas ... The HRCT shows a ... mosaic pattern ... #CXR #CTChest #
High Attenuation pattern 
1. Chronic eosinophilic pneumonia with peripheral areas of ground glass opacity.
2. Sarcoid end-stage
with peripheral areas ... presenting as areas ... with peripheral areas ... carcinoma with both areas ... #HRCT #CTChest
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Low Attenuation pattern ... low attenuation areas ... #Clinical #Radiology ... #HRCT #CTChest ... LowAttenuation #Cystic #Pattern
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Low Attenuation pattern ... low attenuation areas ... #Clinical #Radiology ... #HRCT #CTChest ... LowAttenuation #Cystic #Pattern
On the left a patient with DIP.
The HRCT shows diffuse areas of ground-glass density in the
The HRCT shows diffuse ... areas of ground-glass ... lobes and some mosaic ... pattern as the ... #CTChest #DIP #
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
pattern The algorithm ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... #CTChest #NodularPattern ... MultipleNodules #Nodules #Differential
On the left a patient with ground glass pattern in a mosaic distribution.
Some lobules are involved
with ground glass pattern ... The differential ... are confluent, HRCT ... #Clinical #Radiology ... #CTChest #GGO #
Chronic hypersensitivity pneumonitis (2)
The case on the left shows an inspiratory and expiratory scan: the mosaic
pattern with areas ... attenuation and areas ... included in the differential ... #Clinical #Radiology ... #CTChest #Chronic
On the left a patient with ground glass pattern in a mosaic distribution.
The clue here is
with ground glass pattern ... in a mosaic distribution ... (arrow) in the areas ... #Clinical #Radiology ... #CTChest #GGO #
Mosaic attenuation
The term 'mosaic attenuation' is used to describe density differences between affected and non-affected lung
non-affected lung areas ... There are patchy areas ... disease #Diagnosis #Radiology ... #Pulmonary #CTChest ... #Attenuation #Differential