23 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Cystic LCH: - LAM ... central dot. - LIP #Clinical ... Diagnosis #Radiology #CTChest ... Differential #Comparison #Table ... #RadiologyAssistant
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Lymphangiomyomatosis (LAM ... #Clinical #Radiology ... #HRCT #CTChest ... Pattern #Comparison #Table ... #RadiologyAssistant
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Lymphangiomyomatosis (LAM ... #Clinical #Radiology ... #HRCT #CTChest ... Pattern #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 ... airways leading to pulmonary ... #Clinical #Radiology ... #CXR #Pneumothorax ... #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
Cystic versus Reticular
It can be difficult to determine whether we are dealing with a reticular pattern
The CXR is of a ... will give you more ... #Clinical #Radiology ... #CXR #CTChest # ... LangerhansCellHistiocytosis #LCH #RadiologyAssistant
Pericardial cyst
Pericardial cysts are connected to the pericardium and usually contain clear fluid.
The majority of pericardial
cardiophrenic angle, more ... proximal aorta and pulmonary ... #Clinical #Radiology ... #CXR #CTChest # ... #RadiologyAssistant
There is a hydropneumothorax.
Notice the air-fluid level.
The upper lobe is still attached to the chest wall
attached to the chest ... airways leading to pulmonary ... #Clinical #Radiology ... #CXR #Pneumothorax ... #RadiologyAssistant
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
before the typical cysts ... #Clinical #Diagnosis ... #Radiology #Pulmonary ... #CTChest #Nodular ... #RadiologyAssistant
Key findings in Lymphangiomyomatosis:
Numerous thin-walled cysts, surrounded by normal parenchyma.
Cysts range from 2mm to 5cm in
round in shape and more ... typical case of LAM ... #Clinical #Radiology ... #CTChest #Lymphangiomyomatosis ... #LAM #Cystic #RadiologyAssistant