9 results
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
(LAM): uniform cysts ... bizarre shaped cysts ... #HRCT #CTChest ... #LowAttenuation ... #Cystic #Pattern
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
multiple thick walled cysts ... (LAM): regular cysts ... #HRCT #CTChest ... #LowAttenuation ... #Cystic #Pattern
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
Emphysema - Lung cysts ... on the basis of HRCT ... #Pulmonary #CTChest ... #LowAttenuation ... TractionBronchiectasis #Cysts
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
The cystic pattern ... When the cysts have ... seen and in many cases ... UIP can be suspected ... #Diagnosis #Radiology
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
On a chest X-ray ... A HRCT is needed ... HRCT demonstrated ... #Clinical #Radiology ... #CXR #UIP #Reticular
The CXR demonstrates a reticular interstitial pattern with a preference at the lung bases.
The HRCT demonstrates
The CXR demonstrates ... preference at the lung bases ... The HRCT demonstrates ... #Clinical #Radiology ... #CXR #UIP #CTChest
Cystic versus Reticular
It can be difficult to determine whether we are dealing with a reticular pattern
or a cystic pattern ... In many of such cases ... a HRCT will give ... #Clinical #Radiology ... #CXR #CTChest #
On the left a chest film of a patient with UIP due to IPF.
The findings on
a patient with UIP ... reticular densities caused ... thick walls of the cysts ... #Clinical #Radiology ... #CXR #CTChest #
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. ... #Clinical #Radiology ... #CXR #CTChest #