16 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
- Lung cysts (LAM ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... Differential #Diagram #Comparison ... #RadiologyAssistant
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
associated pulmonary ... emphysema. ... Clinical #Diagnosis #Radiology ... #Emphysema #Comparison ... #RadiologyAssistant
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
(LAM): uniform cysts ... Centrilobular emphysema ... #Clinical #Radiology ... Cystic #Pattern #Comparison ... #Table #RadiologyAssistant
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
: - LAM: round cysts ... Centrilobular emphysema ... Clinical #Diagnosis #Radiology ... #Differential #Comparison ... #Table #RadiologyAssistant
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Centrilobular emphysema ... (LAM): regular cysts ... #Clinical #Radiology ... Cystic #Pattern #Comparison ... #Table #RadiologyAssistant
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
before the typical cysts ... Clinical #Diagnosis #Radiology ... #Pulmonary #CTChest ... #Differential #Comparison ... #Table #RadiologyAssistant
Honeycombing is defined by the presence of small cystic spaces with irregularly thickened walls composed of
Honeycomb cysts ... from paraseptal emphysema ... #Diagnosis #Radiology ... #Pulmonary #Honeycombing ... #Differential #RadiologyAssistant
On the left a typical case of panlobular emphysema.
There is uniform destruction of the underlying architecture
the secondary pulmonary ... Pulmonary vessels ... and smaller than normal ... #Clinical #Radiology ... PanlobularEmphysema #RadiologyAssistant
Differential diagnosis of Lymphangitic Carcinomatosis. 
On the left multiple diseases showing septal thickening:
1. Lymphangitic carcinomatosis: irregular
Cardiogenic pulmonary ... secondary lobules with normal ... #Clinical #Radiology ... #Differential #Comparison ... #Table #RadiologyAssistant
On a chest film only the outer contours of the heart are seen.
In many cases we
heart figure is normal ... blood from the pulmonary ... just below the pulmonary ... #Anatomy #Radiology ... Cardiac #Chambers #RadiologyAssistant