11 results
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Langerhans cell histiocytosis ... Lymphangiomyomatosis ... #Clinical #Radiology ... #HRCT #CTChest ... #LowAttenuation
On the left three different patients with lung cysts.
From left to right: Lymphangiomyomatosis, LIP and Langerhans
left to right: Lymphangiomyomatosis ... Langerhans cell histiocytosis ... #Clinical #Diagnosis ... #Radiology #CTChest ... #RadiologyAssistant
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Lymphangiomyomatosis ... LCH: multiple round ... #Clinical #Radiology ... #HRCT #CTChest ... #LowAttenuation
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Langerhans cell histiocytosis ... Cystic LCH: - LAM: round ... : 'signet ring sign ... #Diagnosis #Radiology ... #CTChest #Cystic
Differential diagnosis of Lymphangiomyomatosis:
Langerhans cell histiocytosis: > 90% are smokers, cysts have irregular shapes and the
Langerhans cell histiocytosis ... gren syndrome. ... #Clinical #Radiology ... #CTChest #Lymphangiomyomatosis ... #LAM #Cystic #RadiologyAssistant
#Clinical #Radiology #CTChest #RoundedAtelectasis #Rounded #Atelectasis #CometTail #Sign #RadiologyAssistant
#Clinical #Radiology ... #CTChest #RoundedAtelectasis ... #Rounded #Atelectasis ... #CometTail #Sign ... #RadiologyAssistant
On the left a case with multiple round and bizarre shaped cysts.
There was an upper lobe
with multiple round ... #Clinical #Radiology ... #CTChest #LangerhansCellHistiocytosis ... #Langerhans #Histiocytosis ... #LCH #RadiologyAssistant
In a later stage the nodules start to cavitate and become cysts.
These cysts start as round
cysts start as round ... #Clinical #Radiology ... #CTChest #LCH # ... LangerhansCellHistiocytosis #Late #Histiocytosis ... #Cavitary #RadiologyAssistant
Key findings in Lymphangiomyomatosis:
Numerous thin-walled cysts, surrounded by normal parenchyma.
Cysts range from 2mm to 5cm in
Key findings in Lymphangiomyomatosis ... diameter, are round ... #Clinical #Radiology ... #CTChest #Lymphangiomyomatosis ... #LAM #Cystic #RadiologyAssistant
On the left a chest film of a 19 year old patient with Langerhans cell histiocytosis.
The
Langerhans cell histiocytosis ... the central dot sign ... #Clinical #Radiology ... #CXR #CTChest # ... #Cystic #RadiologyAssistant