11 results
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
(LAM): uniform cysts ... effusion; sometimes pneumothorax ... bizarre shaped cysts ... Radiology #HRCT #CTChest ... Comparison #Table #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... appreciate on a cest ... When the cysts have ... seen and in many cases ... #Differential #RadiologyAssistant
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
Emphysema - Lung cysts ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... TractionBronchiectasis #Cysts ... Emphysema #SignetRing #RadiologyAssistant
There is a hydropneumothorax.
Notice the air-fluid level (blue arrow).
The upper lobe is still attached to the
attached to the chest ... There is a lung cyst ... is a possible diagnosis ... leading to pulmonary cyst ... Lymphangioleiomyomatosis #LAM #RadiologyAssistant
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
with a nodular pattern ... before the typical cysts ... #Clinical #Diagnosis ... Radiology #Pulmonary #CTChest ... Comparison #Table #RadiologyAssistant
Key findings in Lymphangiomyomatosis:
Numerous thin-walled cysts, surrounded by normal parenchyma.
Cysts range from 2mm to 5cm in
Recurrent pneumothorax ... left a typical case ... complicated by a pneumothorax ... Clinical #Radiology #CTChest ... #LAM #Cystic #RadiologyAssistant
On the left a case with multiple cysts that are evenly distributed througout the lung (
On the left a case ... with multiple cysts ... Notice the pneumothorax ... Clinical #Radiology #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 ... There is a lung cyst ... is a possible diagnosis ... leading to pulmonary cyst ... Lymphangioleiomyomatosis #LAM #RadiologyAssistant
On the left a chest film of a 19 year old patient with Langerhans cell histiocytosis.
The
is a reticular patern ... was caused by multiple ... cysts. ... challenging differential diagnosis ... Histiocytosis #Cystic #RadiologyAssistant
Differential diagnosis of Lymphangiomyomatosis:
Langerhans cell histiocytosis: > 90% are smokers, cysts have irregular shapes and the
Differential diagnosis ... 90% are smokers, cysts ... another typical case ... Clinical #Radiology #CTChest ... #LAM #Cystic #RadiologyAssistant