11 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
on the basis of HRCT ... Diagnosis #Radiology #Pulmonary ... Differential #Diagram #Comparison ... Emphysema #SignetRing #RadiologyAssistant
The distribution of nodules shown on HRCT is the most important factor in making an accurate
nodules shown on HRCT ... Diagnosis #Radiology #Pulmonary ... #HRCT #NodularPattern ... Perilymphatic #Comparison ... #Diagram #RadiologyAssistant
Differential diagnosis of Lymphangitic Carcinomatosis. 
On the left multiple diseases showing septal thickening:
1. Lymphangitic carcinomatosis: irregular
Cardiogenic pulmonary ... secondary lobules with normal ... Cardiogenic pulmonary ... #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 ... trunk. - Enlargement ... Cardiac #Chambers #RadiologyAssistant
Stage I - Redistribution
In a normal chest film with the patient standing erect, the pulmonary vessels
Redistribution In a normal ... standing erect, the pulmonary ... The pulmonary vascular ... In these cases comparison ... Redistribution #RadiologyAssistant
Reticular pattern 
1. Lymphangitic carcinomatosis: irregular septal thickening, usually focal or unilateral 50% adenopathy', known carcinoma.
2.
Cardiogenic pulmonary ... incidental finding in HRCT ... Cardiogenic pulmonary ... Reticular #Pattern #Comparison ... #Table #RadiologyAssistant
Previous normal chest x-ray (left) and CHF stage II with perihilar haze (right). On the left
Previous normal ... diameter of the pulmonary ... CHF #Vascular #Engorgement ... #Thickening #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 ... difficult to detect on HRCT ... PanlobularEmphysema #RadiologyAssistant
There are three principal varieties of pulmonary edema: cardiac, overhydration and increased capillary permeability (ARDS). 
The
principal varieties of pulmonary ... different forms of pulmonary ... edema (6): - Normal ... Pedicle #Width #Comparison ... VascularPedicleWidth #RadiologyAssistant
Artery-to-bronchus ratio 
Normally the vessels in the upper lobes are smaller than the accompanying bronchus with
Artery-to-bronchus ratio Normally ... redistribution of pulmonary ... diameter > 3 mm (normal ... CHF #Vascular #Engorgement ... #RadiologyAssistant