22 results
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
(LAM): uniform cysts ... Centrilobular emphysema ... low attenuation areas ... Radiology #HRCT #CTChest ... Comparison #Table #RadiologyAssistant
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
These include: - Emphysema ... - Lung cysts (LAM ... Radiology #Pulmonary #CTChest ... #Emphysema #SignetRing ... #RadiologyAssistant
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Centrilobular emphysema ... low attenuation areas ... (LAM): regular cysts ... Radiology #HRCT #CTChest ... Comparison #Table #RadiologyAssistant
Radiologists use many terms to describe areas of decreased density or lucencies within the lung, like
the lung, like cyst ... pneumatocele, emphysema ... we describe a chest ... with a thin wall Emphysema ... visible wall #CXR
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
associated pulmonary emphysema ... Diagnosis #Radiology #CTChest ... #Cavity #Cyst # ... Emphysema #Comparison ... #RadiologyAssistant
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
: - LAM: round cysts ... Centrilobular emphysema ... Diagnosis #Radiology #CTChest ... #Cystic #Cysts ... Comparison #Table #RadiologyAssistant
Pericardial cyst
Pericardial cysts are connected to the pericardium and usually contain clear fluid.
The majority of pericardial
Pericardial cyst ... On the chest x-ray ... Clinical #Radiology #CXR ... #CTChest #PericardialCyst ... #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
On a Chest X-Ray ... On a CXR the most ... detected on a chest ... When the cysts have ... #Differential #RadiologyAssistant
On the left a chest film of a 19 year old patient with Langerhans cell histiocytosis.
The
caused by multiple cysts ... Emphysema however ... Clinical #Radiology #CXR ... #CTChest #LCH # ... Histiocytosis #Cystic #RadiologyAssistant
Chronic hypersensitivity pneumonitis
The key findings in chronic hypersensitivity pneumonitis are:
Mosaic pattern with areas of ground-glass atenuation
Mosaic pattern with areas ... atenuation and areas ... Clinical #Radiology #CXR ... #CTChest #Hypersensitivity ... Chronic #Fibrosis #RadiologyAssistant