46 results
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
effusion; sometimes pneumothorax ... low attenuation areas ... #Clinical #Radiology ... #HRCT #CTChest ... Comparison #Table #RadiologyAssistant
There is a hydropneumothorax.
Notice the air-fluid level (blue arrow).
The upper lobe is still attached to the
attached to the chest ... cyst in the upper ... leading to pulmonary cyst ... #Clinical #Radiology ... Lymphangioleiomyomatosis #LAM #RadiologyAssistant
On the left three different patients with lung cysts.
From left to right: Lymphangiomyomatosis, LIP and Langerhans
patients with lung ... cysts. ... #Clinical #Diagnosis ... #Radiology #CTChest ... Histiocytosis #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
lung disease comes ... lung disease and ... The cystic pattern ... When the cysts have ... #Differential #RadiologyAssistant
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
low attenuation areas ... (LAM): regular cysts ... #Clinical #Radiology ... #HRCT #CTChest ... Comparison #Table #RadiologyAssistant
Notice the honeycombing and the preference of the subpleural and basal lung areas. #Clinical #Radiology #CTChest
subpleural and basal lung ... areas. ... #Clinical #Radiology ... #CTChest #UIP # ... Pneumonitis #ILD #RadiologyAssistant
Notice the honeycombing and the preference of the subpleural and basal lung areas. #Clinical #Radiology #CTChest
subpleural and basal lung ... areas. ... #Clinical #Radiology ... #CTChest #UIP # ... LowerLungPredominance #ILD #RadiologyAssistant
There is a hydropneumothorax.
Notice the air-fluid level.
The upper lobe is still attached to the chest wall
attached to the chest ... cyst in the upper ... leading to pulmonary cyst ... #Clinical #Radiology ... Lymphangioleiomyomatosis #LAM #RadiologyAssistant
On the left a chest film of a patient with UIP due to IPF.
The findings on
changes in the basal lung ... thick walls of the cysts ... #Clinical #Radiology ... UsualInterstitialPneumonitis #Usual #Interstitial ... Reticular #ILD #RadiologyAssistant
Key findings in Lymphangiomyomatosis:
Numerous thin-walled cysts, surrounded by normal parenchyma.
Cysts range from 2mm to 5cm in
throughout the lungs ... Recurrent pneumothorax ... #Clinical #Radiology ... #CTChest #Lymphangiomyomatosis ... #LAM #Cystic #RadiologyAssistant