460 results
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
round and bizarre shaped ... Comparison #Table #RadiologyAssistant
On the left a case with multiple round and bizarre shaped cysts.
There was an upper lobe
round and bizarre shaped ... Histiocytosis #LCH #RadiologyAssistant
On the left another case of Langerhans' cell histiocytosis.
It started as small noduli, which progressed over
progress to bizarre shaped ... Histiocytosis #Cystic #RadiologyAssistant
In a later stage the nodules start to cavitate and become cysts.
These cysts start as round
typical bizarre shaped ... Histiocytosis #Cavitary #RadiologyAssistant
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
demonstrating wegde-shaped ... SepticEmboli #Cavity #RadiologyAssistant
HRCT findings in Langerhans cell histiocytosis:
Early stage:
- Small irregular or stellate nodules in centrilobular location.
Late stage
Cysts have bizarre shapes ... Histiocytosis #RadiologyAssistant
Pleural plaques
The CXR shows multiple opacities.
They have irregular shapes and do not look like a lung
have irregular shapes ... Plaques #Asbestos #RadiologyAssistant
Differential diagnosis of Lymphangiomyomatosis:
Langerhans cell histiocytosis: > 90% are smokers, cysts have irregular shapes and the
have irregular shapes ... #LAM #Cystic #RadiologyAssistant
Key findings in Lymphangiomyomatosis:
Numerous thin-walled cysts, surrounded by normal parenchyma.
Cysts range from 2mm to 5cm in
, are round in shape ... #LAM #Cystic #RadiologyAssistant
D-Sign in a lady with Massive PE - The LV should always be round like a
doughnut (“O”-shaped ... LV takes shape of