13 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
The fourth pattern ... - Lung cysts (LAM ... #Diagnosis #Radiology ... LowAttenuation #Differential ... #SignetRing #RadiologyAssistant
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Centrilobular emphysema ... low attenuation areas ... #Clinical #Radiology ... #Comparison #Table ... #RadiologyAssistant
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Centrilobular emphysema ... low attenuation areas ... #Clinical #Radiology ... #Comparison #Table ... #RadiologyAssistant
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Upper lung zone ... (centrilobular emphysema ... HRCT #ChestCT #Differential ... #Table #Distribution ... #Upper #Lower #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... in interstitial lung ... low attenuation (table ... #Diagnosis #Radiology ... RadiologyAssistant
Radiologists use many terms to describe areas of decreased density or lucencies within the lung, like
pneumatocele, emphysema ... with a thin wall Emphysema ... #CXR #Lucency #Differential ... #Table #CavitaryLesion ... Pulmonary #Diagnosis #Radiology
Lung abnormalities mostly present as areas of increased density, which can be divided into the following
the following patterns ... are seen as in emphysema ... Diagnosis #Pathophys #Radiology ... #CXR #Lung #Patterns ... #RadiologyAssistant
Hilar and mediastinal lymphadenopathy
In sarcoidosis the common pattern is right paratracheal and bilateral hilar adenopathy ('1-2-3-sign').
In
sarcoidosis the common pattern ... In lung carcinoma ... #Diagnosis #Radiology ... Lymphadenopathy #Differential ... #RadiologyAssistant
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
In the differential ... To differentiate ... the surrounding lung ... fluid or solid material ... #Comparison #RadiologyAssistant
Cystic lung disease
Lung cysts are defined as radiolucent areas with a wall thickness of less than
as radiolucent areas ... listed in the table ... #Diagnosis #Radiology ... CysticLungDisease #Differential ... #RadiologyAssistant