14 results
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
effusion; sometimes pneumothorax ... low attenuation areas ... Radiology #HRCT #CTChest ... Pattern #Comparison #Table ... #RadiologyAssistant
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
low attenuation areas ... (LAM): regular cysts ... Radiology #HRCT #CTChest ... Pattern #Comparison #Table ... #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
low attenuation (table ... The cystic pattern ... When the cysts have ... Diagnosis #Radiology #Pulmonary ... #Differential #RadiologyAssistant
There is a hydropneumothorax.
Notice the air-fluid level (blue arrow).
The upper lobe is still attached to the
attached to the chest ... There is a lung cyst ... airways leading to pulmonary ... cyst formation ... Lymphangioleiomyomatosis #LAM #RadiologyAssistant
Cystic lung disease
Lung cysts are defined as radiolucent areas with a wall thickness of less than
as radiolucent areas ... listed in the table ... as radiolucent areas ... Diagnosis #Radiology #Pulmonary ... #Differential #RadiologyAssistant
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
The idiopathic interstitial ... listed in the table ... Diagnosis #Radiology #Pulmonary ... #CTChest #Idiopathic ... ILD #Findings #RadiologyAssistant
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
differential diagnosis (Table ... pulmonary edema ... Diagnosis #Radiology #Pulmonary ... #HRCT #CTChest ... #Differential #RadiologyAssistant
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
before the typical cysts ... Diagnosis #Radiology #Pulmonary ... #CTChest #Nodular ... Differential #Comparison #Table ... #RadiologyAssistant
There is a hydropneumothorax.
Notice the air-fluid level.
The upper lobe is still attached to the chest wall
attached to the chest ... There is a lung cyst ... airways leading to pulmonary ... cyst formation ... Lymphangioleiomyomatosis #LAM #RadiologyAssistant
Differential diagnosis of Lymphangitic Carcinomatosis. 
On the left multiple diseases showing septal thickening:
1. Lymphangitic carcinomatosis: irregular
Cardiogenic pulmonary ... bronchovascular interstitium ... #CTChest #LymphangiticCarcinomatosis ... Differential #Comparison #Table ... #RadiologyAssistant