13 results
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Lymphangiomyomatosis (LAM ... adenopathy and pleural effusion ... Centrilobular emphysema ... #Clinical #Radiology ... #HRCT #CTChest
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Cystic LCH: - LAM ... Centrilobular emphysema ... central dot. - LIP #Clinical ... #Diagnosis #Radiology ... #CTChest #Cystic
On the left three different patients with lung cysts.
From left to right: Lymphangiomyomatosis, LIP and Langerhans
patients with lung ... #Clinical #Diagnosis ... #Radiology #CTChest ... #LAM #LIP #Histiocytosis ... #RadiologyAssistant
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
result in decreased lung ... - Lung cysts (LAM ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... #RadiologyAssistant
There is a hydropneumothorax.
Notice the air-fluid level (blue arrow).
The upper lobe is still attached to the
is a possible diagnosis ... LAM is a rare lung ... #Clinical #Radiology ... #CXR #Pneumothorax ... #RadiologyAssistant
Differential diagnosis of Lymphangiomyomatosis:
Langerhans cell histiocytosis: > 90% are smokers, cysts have irregular shapes and the
Differential diagnosis ... Centrilobular emphysema ... #Clinical #Radiology ... #CTChest #Lymphangiomyomatosis ... #LAM #Cystic #RadiologyAssistant
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
the differential diagnosis ... the surrounding lung ... #Clinical #Diagnosis ... #Radiology #CTChest ... #RadiologyAssistant
There is a hydropneumothorax.
Notice the air-fluid level.
The upper lobe is still attached to the chest wall
is a possible diagnosis ... LAM is a rare lung ... #Clinical #Radiology ... #CXR #Pneumothorax ... #RadiologyAssistant
Key findings in Lymphangiomyomatosis:
Numerous thin-walled cysts, surrounded by normal parenchyma.
Cysts range from 2mm to 5cm in
throughout the lungs ... adenopathy and pleural effusions ... #Clinical #Radiology ... #CTChest #Lymphangiomyomatosis ... #LAM #Cystic #RadiologyAssistant
On the left a chest film of a 19 year old patient with Langerhans cell histiocytosis.
The
caused by multiple cysts ... challenging differential diagnosis ... #Clinical #Radiology ... #CXR #CTChest # ... #RadiologyAssistant